---
_id: '37273'
abstract:
- lang: eng
  text: How are activation programs for the young unemployed implemented? How do street-level
    bureaucrats deal with competing rationalities and demands for action? Transition
    policies increasingly aim at promoting self-regulation and constructing employable
    subjects. Stephan Dahmen explores the practical regulation of biographical transitions
    in activation programs for the young unemployed by focusing on the interactive
    accomplishment of activation work. The study reveals how the critical tensions
    of activation policies are continually re-interpreted and adapted to local contingencies
    and describes the various organisational technologies used for creating employable
    subjects.
author:
- first_name: Stephan
  full_name: Dahmen, Stephan
  last_name: Dahmen
citation:
  ama: Dahmen S. <i>Regulating Transitions from School to Work. An Institutional Ethnography
    of Activation Work in Action</i>. Bielefeld University Press; 2021. doi:<a href="https://doi.org/10.14361/9783839457061">10.14361/9783839457061</a>
  apa: Dahmen, S. (2021). <i>Regulating Transitions from School to Work. An Institutional
    Ethnography of Activation Work in Action</i>. Bielefeld University Press. <a href="https://doi.org/10.14361/9783839457061">https://doi.org/10.14361/9783839457061</a>
  bibtex: '@book{Dahmen_2021, title={Regulating Transitions from School to Work. An
    Institutional Ethnography of Activation Work in Action}, DOI={<a href="https://doi.org/10.14361/9783839457061">10.14361/9783839457061</a>},
    publisher={Bielefeld University Press}, author={Dahmen, Stephan}, year={2021}
    }'
  chicago: Dahmen, Stephan. <i>Regulating Transitions from School to Work. An Institutional
    Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021.
    <a href="https://doi.org/10.14361/9783839457061">https://doi.org/10.14361/9783839457061</a>.
  ieee: S. Dahmen, <i>Regulating Transitions from School to Work. An Institutional
    Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021.
  mla: Dahmen, Stephan. <i>Regulating Transitions from School to Work. An Institutional
    Ethnography of Activation Work in Action</i>. Bielefeld University Press, 2021,
    doi:<a href="https://doi.org/10.14361/9783839457061">10.14361/9783839457061</a>.
  short: S. Dahmen, Regulating Transitions from School to Work. An Institutional Ethnography
    of Activation Work in Action, Bielefeld University Press, 2021.
date_created: 2023-01-18T10:14:30Z
date_updated: 2023-01-18T10:16:56Z
department:
- _id: '723'
- _id: '724'
doi: 10.14361/9783839457061
keyword:
- Youth
- Welfare State
- Transitions
- Human Service Organizations
- Institutional Ethnography
- Activation
- Sociology of Conventions
- Work
- Education
- Educational Research
- Sociology of Education
- Social Pedagogy
- History of Education
- Bielefeld University Press
language:
- iso: eng
page: '312'
publisher: Bielefeld University Press
status: public
title: Regulating Transitions from School to Work. An Institutional Ethnography of
  Activation Work in Action
type: book
user_id: '48187'
year: '2021'
...
---
_id: '37136'
abstract:
- lang: eng
  text: This study examines the relation between voluntary audit and the cost of debt
    in private firms. We use a sample of 4,058 small private firms operating in the
    period 2006‐2017 that are not subject to mandatory audits. Firms decide for a
    voluntary audit of financial statements either because the economic setting in
    which they operate effectively forces them to do so (e.g., ownership complexity,
    export‐oriented supply chain, subsidiary status) or because firm fundamentals
    and/or financial reporting practices limit their access to financial debt, both
    reflected in earnings quality. We use these factors to model the decision for
    voluntary audit. In the outcome analyses, we find robust evidence that voluntary
    audits are associated with higher, rather than lower, interest rate by up to 3.0
    percentage points. This effect is present regardless of the perceived audit quality
    (Big‐4 vs. non‐Big‐4), but is stronger for non‐Big‐4 audits where auditees have
    a stronger position relative to auditors. Audited firms’ earnings are less informative
    about future operating performance relative to unaudited counterparts. We conclude
    that voluntary audits facilitate access to financial debt for firms with higher
    risk that may otherwise have no access to this form of financing. The price paid
    is reflected in higher interest rates charged to firms with voluntary audits –
    firms with higher information and/or fundamental risk.
author:
- first_name: Riste
  full_name: Ichev, Riste
  last_name: Ichev
- first_name: Jernej
  full_name: Koren, Jernej
  last_name: Koren
- first_name: Urska
  full_name: Kosi, Urska
  id: '54068'
  last_name: Kosi
- first_name: Katarina
  full_name: Sitar Sustar, Katarina
  last_name: Sitar Sustar
- first_name: Aljosa
  full_name: Valentincic, Aljosa
  last_name: Valentincic
citation:
  ama: 'Ichev R, Koren J, Kosi U, Sitar Sustar K, Valentincic A. <i>Cost of Debt for
    Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>.; 2021.'
  apa: 'Ichev, R., Koren, J., Kosi, U., Sitar Sustar, K., &#38; Valentincic, A. (2021).
    <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection
    of Risk</i>.'
  bibtex: '@book{Ichev_Koren_Kosi_Sitar Sustar_Valentincic_2021, title={Cost of Debt
    for Private Firms Revisited: Voluntary Audits as a Reflection of Risk}, author={Ichev,
    Riste and Koren, Jernej and Kosi, Urska and Sitar Sustar, Katarina and Valentincic,
    Aljosa}, year={2021} }'
  chicago: 'Ichev, Riste, Jernej Koren, Urska Kosi, Katarina Sitar Sustar, and Aljosa
    Valentincic. <i>Cost of Debt for Private Firms Revisited: Voluntary Audits as
    a Reflection of Risk</i>, 2021.'
  ieee: 'R. Ichev, J. Koren, U. Kosi, K. Sitar Sustar, and A. Valentincic, <i>Cost
    of Debt for Private Firms Revisited: Voluntary Audits as a Reflection of Risk</i>.
    2021.'
  mla: 'Ichev, Riste, et al. <i>Cost of Debt for Private Firms Revisited: Voluntary
    Audits as a Reflection of Risk</i>. 2021.'
  short: 'R. Ichev, J. Koren, U. Kosi, K. Sitar Sustar, A. Valentincic, Cost of Debt
    for Private Firms Revisited: Voluntary Audits as a Reflection of Risk, 2021.'
date_created: 2023-01-17T15:03:08Z
date_updated: 2023-01-18T13:40:40Z
department:
- _id: '635'
- _id: '186'
- _id: '551'
keyword:
- private firms
- voluntary audit
- cost of debt
- self‐selection bias
- risk
language:
- iso: eng
main_file_link:
- url: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3853927
status: public
title: 'Cost of Debt for Private Firms Revisited: Voluntary Audits as a Reflection
  of Risk'
type: working_paper
user_id: '88603'
year: '2021'
...
---
_id: '34227'
abstract:
- lang: eng
  text: In order to reduce the fuel consumption and consequently the greenhouse emissions,
    the automotive industry is implementing lightweight constructions in the body
    in white production. As a result, the use of aluminum alloys is continuously increasing.
    Due to poor weldability of aluminum in combination with other materials, mechanical
    joining technologies like clinching are increasingly used. In order to predict
    relevant characteristics of clinched joints and to ensure the reliability of the
    process, it is simulated numerically during product development processes. In
    this regard the predictive accuracy of the simulated process highly depends on
    the implemented friction model. In particular, the frictional behavior between
    the sheet metals affects the geometrical formation of the clinched joint significantly.
    This paper presents a testing method, which enables to determine the frictional
    coefficients between sheet metal materials for the simulation of clinching processes.
    For this purpose, the correlation of interface pressure and the relative velocity
    between aluminum sheets in clinching processes is investigated using numerical
    simulation. Furthermore, the developed testing method focuses on the specimen
    geometry as well as the reproduction of the occurring friction conditions between
    two sheet metal materials in clinching processes. Based on a methodical approach
    the test setup is explained and the functionality of the method is proven by experimental
    tests using sheet metal material EN AW6014.
author:
- first_name: Moritz Sebastian
  full_name: Rossel, Moritz Sebastian
  id: '44503'
  last_name: Rossel
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Rossel MS, Böhnke M, Bielak CR, Bobbert M, Meschut G. Development of a Method
    for the Identification of Friction Coefficients in Sheet Metal Materials for the
    Numerical Simulation of Clinching Processes. <i>Key Engineering Materials</i>.
    2021;883:81-88. doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.81">10.4028/www.scientific.net/kem.883.81</a>
  apa: Rossel, M. S., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2021).
    Development of a Method for the Identification of Friction Coefficients in Sheet
    Metal Materials for the Numerical Simulation of Clinching Processes. <i>Key Engineering
    Materials</i>, <i>883</i>, 81–88. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.81">https://doi.org/10.4028/www.scientific.net/kem.883.81</a>
  bibtex: '@article{Rossel_Böhnke_Bielak_Bobbert_Meschut_2021, title={Development
    of a Method for the Identification of Friction Coefficients in Sheet Metal Materials
    for the Numerical Simulation of Clinching Processes}, volume={883}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.81">10.4028/www.scientific.net/kem.883.81</a>},
    journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
    author={Rossel, Moritz Sebastian and Böhnke, Max and Bielak, Christian Roman and
    Bobbert, Mathias and Meschut, Gerson}, year={2021}, pages={81–88} }'
  chicago: 'Rossel, Moritz Sebastian, Max Böhnke, Christian Roman Bielak, Mathias
    Bobbert, and Gerson Meschut. “Development of a Method for the Identification of
    Friction Coefficients in Sheet Metal Materials for the Numerical Simulation of
    Clinching Processes.” <i>Key Engineering Materials</i> 883 (2021): 81–88. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.81">https://doi.org/10.4028/www.scientific.net/kem.883.81</a>.'
  ieee: 'M. S. Rossel, M. Böhnke, C. R. Bielak, M. Bobbert, and G. Meschut, “Development
    of a Method for the Identification of Friction Coefficients in Sheet Metal Materials
    for the Numerical Simulation of Clinching Processes,” <i>Key Engineering Materials</i>,
    vol. 883, pp. 81–88, 2021, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.81">10.4028/www.scientific.net/kem.883.81</a>.'
  mla: Rossel, Moritz Sebastian, et al. “Development of a Method for the Identification
    of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation
    of Clinching Processes.” <i>Key Engineering Materials</i>, vol. 883, Trans Tech
    Publications, Ltd., 2021, pp. 81–88, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.81">10.4028/www.scientific.net/kem.883.81</a>.
  short: M.S. Rossel, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, Key Engineering
    Materials 883 (2021) 81–88.
date_created: 2022-12-05T21:57:07Z
date_updated: 2023-03-09T11:43:31Z
department:
- _id: '630'
- _id: '157'
doi: 10.4028/www.scientific.net/kem.883.81
intvolume: '       883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 81-88
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: Key Engineering Materials
publication_identifier:
  issn:
  - 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
quality_controlled: '1'
status: public
title: Development of a Method for the Identification of Friction Coefficients in
  Sheet Metal Materials for the Numerical Simulation of Clinching Processes
type: journal_article
user_id: '7850'
volume: 883
year: '2021'
...
---
_id: '30675'
abstract:
- lang: eng
  text: <jats:p>In many areas of product manufacturing constructions consist of individual
    components and metal sheets that are joined together to form complex structures.
    A simple and industrial common method for joining dissimilar and coated materials
    is clinching. During the joining process and due to the service load cracks can
    occur in the area of the joint, propagate due to cyclic loading and consequently
    lead to structural failure. For the prevention of these damage cases, first of
    all knowledge about the fracture mechanical material parameters regarding the
    original material state of the sheet metals used within the clinching process
    are essential.Within the scope of this paper experimental and numerical preliminary
    investigations regarding the fracture mechanical behavior of sheet metals used
    within the clinching process are presented. Due to the low thickness of 1.5 mm
    of the material sheets, the development of a new specimen is necessary to determine
    the crack growth rate curve including the fracture mechanical parameters like
    the threshold against crack growth ΔK<jats:sub>I,th</jats:sub> and the fracture
    toughness K<jats:sub>IC</jats:sub> of the base material HCT590X. For the experimental
    determination of the crack growth rate curve the numerical calculation of the
    geometry factor function as well as the calibration function of this special specimen
    are essential. After the experimental validation of the numerically determined
    calibration function, crack growth rate curves are determined for the stress ratios
    <jats:italic>R</jats:italic> = 0.1 and <jats:italic>R</jats:italic> = 0.3 to examine
    the mean stress sensitivity. In addition, the different rolling directions of
    0° and 90° in relation to the initial crack are taken into account in order to
    investigate the influence of the anisotropy due to rolling.</jats:p>
author:
- first_name: Deborah
  full_name: Weiß, Deborah
  id: '45673'
  last_name: Weiß
- first_name: Britta
  full_name: Schramm, Britta
  id: '4668'
  last_name: Schramm
- first_name: Gunter
  full_name: Kullmer, Gunter
  id: '291'
  last_name: Kullmer
citation:
  ama: 'Weiß D, Schramm B, Kullmer G. Numerical and Experimental Fracture Mechanical
    Investigations of Clinchable Sheet Metals Made of HCT590X. In: <i>Key Engineering
    Materials</i>. Vol 883. Trans Tech Publications, Ltd.; 2021:127-132. doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>'
  apa: Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.
    <i>Key Engineering Materials</i>, <i>883</i>, 127–132. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>
  bibtex: '@inproceedings{Weiß_Schramm_Kullmer_2021, title={Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X},
    volume={883}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>},
    booktitle={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
    author={Weiß, Deborah and Schramm, Britta and Kullmer, Gunter}, year={2021}, pages={127–132}
    }'
  chicago: Weiß, Deborah, Britta Schramm, and Gunter Kullmer. “Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.”
    In <i>Key Engineering Materials</i>, 883:127–32. Trans Tech Publications, Ltd.,
    2021. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>.
  ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Numerical and Experimental Fracture
    Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X,” in <i>Key
    Engineering Materials</i>, online, 2021, vol. 883, pp. 127–132, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>.'
  mla: Weiß, Deborah, et al. “Numerical and Experimental Fracture Mechanical Investigations
    of Clinchable Sheet Metals Made of HCT590X.” <i>Key Engineering Materials</i>,
    vol. 883, Trans Tech Publications, Ltd., 2021, pp. 127–32, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>.
  short: 'D. Weiß, B. Schramm, G. Kullmer, in: Key Engineering Materials, Trans Tech
    Publications, Ltd., 2021, pp. 127–132.'
conference:
  end_date: 2021-03-31
  location: online
  name: 19th International Conference on Sheet Metal
  start_date: 2021-03-29
date_created: 2022-03-29T08:09:01Z
date_updated: 2023-04-27T10:13:19Z
department:
- _id: '143'
doi: 10.4028/www.scientific.net/kem.883.127
intvolume: '       883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 127-132
publication: Key Engineering Materials
publication_identifier:
  issn:
  - 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
quality_controlled: '1'
status: public
title: Numerical and Experimental Fracture Mechanical Investigations of Clinchable
  Sheet Metals Made of HCT590X
type: conference
user_id: '45673'
volume: 883
year: '2021'
...
---
_id: '40434'
article_number: '2100518'
author:
- first_name: Philip
  full_name: Klement, Philip
  last_name: Klement
- first_name: Natalie
  full_name: Dehnhardt, Natalie
  last_name: Dehnhardt
- first_name: Chuan-Ding
  full_name: Dong, Chuan-Ding
  id: '67188'
  last_name: Dong
- first_name: Florian
  full_name: Dobener, Florian
  last_name: Dobener
- first_name: Samuel
  full_name: Bayliff, Samuel
  last_name: Bayliff
- first_name: Julius
  full_name: Winkler, Julius
  last_name: Winkler
- first_name: Detlev M.
  full_name: Hofmann, Detlev M.
  last_name: Hofmann
- first_name: Peter J.
  full_name: Klar, Peter J.
  last_name: Klar
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Sangam
  full_name: Chatterjee, Sangam
  last_name: Chatterjee
- first_name: Johanna
  full_name: Heine, Johanna
  last_name: Heine
citation:
  ama: Klement P, Dehnhardt N, Dong C-D, et al. Atomically Thin Sheets of Lead‐Free
    1D Hybrid Perovskites Feature Tunable White‐Light Emission from Self‐Trapped Excitons.
    <i>Advanced Materials</i>. 2021;33(23). doi:<a href="https://doi.org/10.1002/adma.202100518">10.1002/adma.202100518</a>
  apa: Klement, P., Dehnhardt, N., Dong, C.-D., Dobener, F., Bayliff, S., Winkler,
    J., Hofmann, D. M., Klar, P. J., Schumacher, S., Chatterjee, S., &#38; Heine,
    J. (2021). Atomically Thin Sheets of Lead‐Free 1D Hybrid Perovskites Feature Tunable
    White‐Light Emission from Self‐Trapped Excitons. <i>Advanced Materials</i>, <i>33</i>(23),
    Article 2100518. <a href="https://doi.org/10.1002/adma.202100518">https://doi.org/10.1002/adma.202100518</a>
  bibtex: '@article{Klement_Dehnhardt_Dong_Dobener_Bayliff_Winkler_Hofmann_Klar_Schumacher_Chatterjee_et
    al._2021, title={Atomically Thin Sheets of Lead‐Free 1D Hybrid Perovskites Feature
    Tunable White‐Light Emission from Self‐Trapped Excitons}, volume={33}, DOI={<a
    href="https://doi.org/10.1002/adma.202100518">10.1002/adma.202100518</a>}, number={232100518},
    journal={Advanced Materials}, publisher={Wiley}, author={Klement, Philip and Dehnhardt,
    Natalie and Dong, Chuan-Ding and Dobener, Florian and Bayliff, Samuel and Winkler,
    Julius and Hofmann, Detlev M. and Klar, Peter J. and Schumacher, Stefan and Chatterjee,
    Sangam and et al.}, year={2021} }'
  chicago: Klement, Philip, Natalie Dehnhardt, Chuan-Ding Dong, Florian Dobener, Samuel
    Bayliff, Julius Winkler, Detlev M. Hofmann, et al. “Atomically Thin Sheets of
    Lead‐Free 1D Hybrid Perovskites Feature Tunable White‐Light Emission from Self‐Trapped
    Excitons.” <i>Advanced Materials</i> 33, no. 23 (2021). <a href="https://doi.org/10.1002/adma.202100518">https://doi.org/10.1002/adma.202100518</a>.
  ieee: 'P. Klement <i>et al.</i>, “Atomically Thin Sheets of Lead‐Free 1D Hybrid
    Perovskites Feature Tunable White‐Light Emission from Self‐Trapped Excitons,”
    <i>Advanced Materials</i>, vol. 33, no. 23, Art. no. 2100518, 2021, doi: <a href="https://doi.org/10.1002/adma.202100518">10.1002/adma.202100518</a>.'
  mla: Klement, Philip, et al. “Atomically Thin Sheets of Lead‐Free 1D Hybrid Perovskites
    Feature Tunable White‐Light Emission from Self‐Trapped Excitons.” <i>Advanced
    Materials</i>, vol. 33, no. 23, 2100518, Wiley, 2021, doi:<a href="https://doi.org/10.1002/adma.202100518">10.1002/adma.202100518</a>.
  short: P. Klement, N. Dehnhardt, C.-D. Dong, F. Dobener, S. Bayliff, J. Winkler,
    D.M. Hofmann, P.J. Klar, S. Schumacher, S. Chatterjee, J. Heine, Advanced Materials
    33 (2021).
date_created: 2023-01-26T15:51:03Z
date_updated: 2023-04-20T15:33:14Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '230'
- _id: '35'
doi: 10.1002/adma.202100518
intvolume: '        33'
issue: '23'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Advanced Materials
publication_identifier:
  issn:
  - 0935-9648
  - 1521-4095
publication_status: published
publisher: Wiley
status: public
title: Atomically Thin Sheets of Lead‐Free 1D Hybrid Perovskites Feature Tunable White‐Light
  Emission from Self‐Trapped Excitons
type: journal_article
user_id: '16199'
volume: 33
year: '2021'
...
---
_id: '34226'
abstract:
- lang: eng
  text: The increasing use of multi-material constructions lead to a continuous increase
    in the use of mechanical joining techniques due to the wide range of joining possibilities
    as well as the high load-bearing capacities of the joints. Nevertheless, the currently
    rigid tool systems are not able to react to changing boundary conditions, like
    changing the material-geometry-combination. Therefore research work is crucial
    with regard to versatile joining systems. In this paper, a new approach for a
    versatile self-piercing riveting process considering the joining system as well
    as the auxiliary joining part is presented.
author:
- first_name: Fabian
  full_name: Kappe, Fabian
  id: '66459'
  last_name: Kappe
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Kappe F, Bobbert M, Meschut G. New Approach for Versatile Self Piercing Riveting:
    Joining System and Auxiliary Part. <i>Key Engineering Materials</i>. 2021;883:3-10.
    doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.3">10.4028/www.scientific.net/kem.883.3</a>'
  apa: 'Kappe, F., Bobbert, M., &#38; Meschut, G. (2021). New Approach for Versatile
    Self Piercing Riveting: Joining System and Auxiliary Part. <i>Key Engineering
    Materials</i>, <i>883</i>, 3–10. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.3">https://doi.org/10.4028/www.scientific.net/kem.883.3</a>'
  bibtex: '@article{Kappe_Bobbert_Meschut_2021, title={New Approach for Versatile
    Self Piercing Riveting: Joining System and Auxiliary Part}, volume={883}, DOI={<a
    href="https://doi.org/10.4028/www.scientific.net/kem.883.3">10.4028/www.scientific.net/kem.883.3</a>},
    journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
    author={Kappe, Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2021},
    pages={3–10} }'
  chicago: 'Kappe, Fabian, Mathias Bobbert, and Gerson Meschut. “New Approach for
    Versatile Self Piercing Riveting: Joining System and Auxiliary Part.” <i>Key Engineering
    Materials</i> 883 (2021): 3–10. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.3">https://doi.org/10.4028/www.scientific.net/kem.883.3</a>.'
  ieee: 'F. Kappe, M. Bobbert, and G. Meschut, “New Approach for Versatile Self Piercing
    Riveting: Joining System and Auxiliary Part,” <i>Key Engineering Materials</i>,
    vol. 883, pp. 3–10, 2021, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.3">10.4028/www.scientific.net/kem.883.3</a>.'
  mla: 'Kappe, Fabian, et al. “New Approach for Versatile Self Piercing Riveting:
    Joining System and Auxiliary Part.” <i>Key Engineering Materials</i>, vol. 883,
    Trans Tech Publications, Ltd., 2021, pp. 3–10, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.3">10.4028/www.scientific.net/kem.883.3</a>.'
  short: F. Kappe, M. Bobbert, G. Meschut, Key Engineering Materials 883 (2021) 3–10.
date_created: 2022-12-05T21:54:38Z
date_updated: 2023-04-27T08:52:59Z
department:
- _id: '630'
- _id: '157'
doi: 10.4028/www.scientific.net/kem.883.3
intvolume: '       883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 3-10
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
  name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Key Engineering Materials
publication_identifier:
  issn:
  - 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
quality_controlled: '1'
status: public
title: 'New Approach for Versatile Self Piercing Riveting: Joining System and Auxiliary
  Part'
type: journal_article
user_id: '66459'
volume: 883
year: '2021'
...
---
_id: '41511'
author:
- first_name: Maxwell
  full_name: Hein, Maxwell
  id: '52771'
  last_name: Hein
  orcid: 0000-0002-3732-2236
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Hein M, Hoyer K-P, Schaper M. Additively processed TiAl6Nb7 alloy for biomedical
    applications. <i>Materialwissenschaft und Werkstofftechnik</i>. 2021;52(7):703-716.
    doi:<a href="https://doi.org/10.1002/mawe.202000288">10.1002/mawe.202000288</a>
  apa: Hein, M., Hoyer, K.-P., &#38; Schaper, M. (2021). Additively processed TiAl6Nb7
    alloy for biomedical applications. <i>Materialwissenschaft Und Werkstofftechnik</i>,
    <i>52</i>(7), 703–716. <a href="https://doi.org/10.1002/mawe.202000288">https://doi.org/10.1002/mawe.202000288</a>
  bibtex: '@article{Hein_Hoyer_Schaper_2021, title={Additively processed TiAl6Nb7
    alloy for biomedical applications}, volume={52}, DOI={<a href="https://doi.org/10.1002/mawe.202000288">10.1002/mawe.202000288</a>},
    number={7}, journal={Materialwissenschaft und Werkstofftechnik}, publisher={Wiley},
    author={Hein, Maxwell and Hoyer, Kay-Peter and Schaper, Mirko}, year={2021}, pages={703–716}
    }'
  chicago: 'Hein, Maxwell, Kay-Peter Hoyer, and Mirko Schaper. “Additively Processed
    TiAl6Nb7 Alloy for Biomedical Applications.” <i>Materialwissenschaft Und Werkstofftechnik</i>
    52, no. 7 (2021): 703–16. <a href="https://doi.org/10.1002/mawe.202000288">https://doi.org/10.1002/mawe.202000288</a>.'
  ieee: 'M. Hein, K.-P. Hoyer, and M. Schaper, “Additively processed TiAl6Nb7 alloy
    for biomedical applications,” <i>Materialwissenschaft und Werkstofftechnik</i>,
    vol. 52, no. 7, pp. 703–716, 2021, doi: <a href="https://doi.org/10.1002/mawe.202000288">10.1002/mawe.202000288</a>.'
  mla: Hein, Maxwell, et al. “Additively Processed TiAl6Nb7 Alloy for Biomedical Applications.”
    <i>Materialwissenschaft Und Werkstofftechnik</i>, vol. 52, no. 7, Wiley, 2021,
    pp. 703–16, doi:<a href="https://doi.org/10.1002/mawe.202000288">10.1002/mawe.202000288</a>.
  short: M. Hein, K.-P. Hoyer, M. Schaper, Materialwissenschaft Und Werkstofftechnik
    52 (2021) 703–716.
date_created: 2023-02-02T14:33:23Z
date_updated: 2023-06-01T14:33:34Z
department:
- _id: '9'
- _id: '158'
doi: 10.1002/mawe.202000288
intvolume: '        52'
issue: '7'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
page: 703-716
publication: Materialwissenschaft und Werkstofftechnik
publication_identifier:
  issn:
  - 0933-5137
  - 1521-4052
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Additively processed TiAl6Nb7 alloy for biomedical applications
type: journal_article
user_id: '43720'
volume: 52
year: '2021'
...
---
_id: '41512'
article_number: '141662'
author:
- first_name: Anatolii
  full_name: Andreiev, Anatolii
  id: '50215'
  last_name: Andreiev
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Dimitri
  full_name: Dula, Dimitri
  last_name: Dula
- first_name: Florian
  full_name: Hengsbach, Florian
  last_name: Hengsbach
- first_name: Olexandr
  full_name: Grydin, Olexandr
  id: '43822'
  last_name: Grydin
- first_name: Yaroslav
  full_name: Frolov, Yaroslav
  last_name: Frolov
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: 'Andreiev A, Hoyer K-P, Dula D, et al. Laser beam melting of functionally graded
    materials with application-adapted tailoring of magnetic and mechanical performance.
    <i>Materials Science and Engineering: A</i>. 2021;822. doi:<a href="https://doi.org/10.1016/j.msea.2021.141662">10.1016/j.msea.2021.141662</a>'
  apa: 'Andreiev, A., Hoyer, K.-P., Dula, D., Hengsbach, F., Grydin, O., Frolov, Y.,
    &#38; Schaper, M. (2021). Laser beam melting of functionally graded materials
    with application-adapted tailoring of magnetic and mechanical performance. <i>Materials
    Science and Engineering: A</i>, <i>822</i>, Article 141662. <a href="https://doi.org/10.1016/j.msea.2021.141662">https://doi.org/10.1016/j.msea.2021.141662</a>'
  bibtex: '@article{Andreiev_Hoyer_Dula_Hengsbach_Grydin_Frolov_Schaper_2021, title={Laser
    beam melting of functionally graded materials with application-adapted tailoring
    of magnetic and mechanical performance}, volume={822}, DOI={<a href="https://doi.org/10.1016/j.msea.2021.141662">10.1016/j.msea.2021.141662</a>},
    number={141662}, journal={Materials Science and Engineering: A}, publisher={Elsevier
    BV}, author={Andreiev, Anatolii and Hoyer, Kay-Peter and Dula, Dimitri and Hengsbach,
    Florian and Grydin, Olexandr and Frolov, Yaroslav and Schaper, Mirko}, year={2021}
    }'
  chicago: 'Andreiev, Anatolii, Kay-Peter Hoyer, Dimitri Dula, Florian Hengsbach,
    Olexandr Grydin, Yaroslav Frolov, and Mirko Schaper. “Laser Beam Melting of Functionally
    Graded Materials with Application-Adapted Tailoring of Magnetic and Mechanical
    Performance.” <i>Materials Science and Engineering: A</i> 822 (2021). <a href="https://doi.org/10.1016/j.msea.2021.141662">https://doi.org/10.1016/j.msea.2021.141662</a>.'
  ieee: 'A. Andreiev <i>et al.</i>, “Laser beam melting of functionally graded materials
    with application-adapted tailoring of magnetic and mechanical performance,” <i>Materials
    Science and Engineering: A</i>, vol. 822, Art. no. 141662, 2021, doi: <a href="https://doi.org/10.1016/j.msea.2021.141662">10.1016/j.msea.2021.141662</a>.'
  mla: 'Andreiev, Anatolii, et al. “Laser Beam Melting of Functionally Graded Materials
    with Application-Adapted Tailoring of Magnetic and Mechanical Performance.” <i>Materials
    Science and Engineering: A</i>, vol. 822, 141662, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.msea.2021.141662">10.1016/j.msea.2021.141662</a>.'
  short: 'A. Andreiev, K.-P. Hoyer, D. Dula, F. Hengsbach, O. Grydin, Y. Frolov, M.
    Schaper, Materials Science and Engineering: A 822 (2021).'
date_created: 2023-02-02T14:33:52Z
date_updated: 2023-06-01T14:35:26Z
department:
- _id: '9'
- _id: '158'
doi: 10.1016/j.msea.2021.141662
intvolume: '       822'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
publication: 'Materials Science and Engineering: A'
publication_identifier:
  issn:
  - 0921-5093
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Laser beam melting of functionally graded materials with application-adapted
  tailoring of magnetic and mechanical performance
type: journal_article
user_id: '43720'
volume: 822
year: '2021'
...
---
_id: '41510'
article_number: '106498'
author:
- first_name: Sudipta
  full_name: Pramanik, Sudipta
  last_name: Pramanik
- first_name: Anatolii
  full_name: Andreiev, Anatolii
  id: '50215'
  last_name: Andreiev
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Pramanik S, Andreiev A, Hoyer K-P, Schaper M. Quasi in-situ analysis of fracture
    path during cyclic loading of double-edged U notched additively manufactured FeCo
    alloy. <i>International Journal of Fatigue</i>. 2021;153. doi:<a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>
  apa: Pramanik, S., Andreiev, A., Hoyer, K.-P., &#38; Schaper, M. (2021). Quasi in-situ
    analysis of fracture path during cyclic loading of double-edged U notched additively
    manufactured FeCo alloy. <i>International Journal of Fatigue</i>, <i>153</i>,
    Article 106498. <a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">https://doi.org/10.1016/j.ijfatigue.2021.106498</a>
  bibtex: '@article{Pramanik_Andreiev_Hoyer_Schaper_2021, title={Quasi in-situ analysis
    of fracture path during cyclic loading of double-edged U notched additively manufactured
    FeCo alloy}, volume={153}, DOI={<a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>},
    number={106498}, journal={International Journal of Fatigue}, publisher={Elsevier
    BV}, author={Pramanik, Sudipta and Andreiev, Anatolii and Hoyer, Kay-Peter and
    Schaper, Mirko}, year={2021} }'
  chicago: Pramanik, Sudipta, Anatolii Andreiev, Kay-Peter Hoyer, and Mirko Schaper.
    “Quasi In-Situ Analysis of Fracture Path during Cyclic Loading of Double-Edged
    U Notched Additively Manufactured FeCo Alloy.” <i>International Journal of Fatigue</i>
    153 (2021). <a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">https://doi.org/10.1016/j.ijfatigue.2021.106498</a>.
  ieee: 'S. Pramanik, A. Andreiev, K.-P. Hoyer, and M. Schaper, “Quasi in-situ analysis
    of fracture path during cyclic loading of double-edged U notched additively manufactured
    FeCo alloy,” <i>International Journal of Fatigue</i>, vol. 153, Art. no. 106498,
    2021, doi: <a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>.'
  mla: Pramanik, Sudipta, et al. “Quasi In-Situ Analysis of Fracture Path during Cyclic
    Loading of Double-Edged U Notched Additively Manufactured FeCo Alloy.” <i>International
    Journal of Fatigue</i>, vol. 153, 106498, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>.
  short: S. Pramanik, A. Andreiev, K.-P. Hoyer, M. Schaper, International Journal
    of Fatigue 153 (2021).
date_created: 2023-02-02T14:33:05Z
date_updated: 2023-06-01T14:35:13Z
department:
- _id: '9'
- _id: '158'
doi: 10.1016/j.ijfatigue.2021.106498
intvolume: '       153'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
- Modeling and Simulation
language:
- iso: eng
publication: International Journal of Fatigue
publication_identifier:
  issn:
  - 0142-1123
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Quasi in-situ analysis of fracture path during cyclic loading of double-edged
  U notched additively manufactured FeCo alloy
type: journal_article
user_id: '43720'
volume: 153
year: '2021'
...
---
_id: '41509'
article_number: '130890'
author:
- first_name: Jan Tobias
  full_name: Krüger, Jan Tobias
  id: '44307'
  last_name: Krüger
  orcid: 0000-0002-0827-9654
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Krüger JT, Hoyer K-P, Schaper M. Bioresorbable AgCe and AgCeLa alloys for adapted
    Fe-based implants. <i>Materials Letters</i>. 2021;306. doi:<a href="https://doi.org/10.1016/j.matlet.2021.130890">10.1016/j.matlet.2021.130890</a>
  apa: Krüger, J. T., Hoyer, K.-P., &#38; Schaper, M. (2021). Bioresorbable AgCe and
    AgCeLa alloys for adapted Fe-based implants. <i>Materials Letters</i>, <i>306</i>,
    Article 130890. <a href="https://doi.org/10.1016/j.matlet.2021.130890">https://doi.org/10.1016/j.matlet.2021.130890</a>
  bibtex: '@article{Krüger_Hoyer_Schaper_2021, title={Bioresorbable AgCe and AgCeLa
    alloys for adapted Fe-based implants}, volume={306}, DOI={<a href="https://doi.org/10.1016/j.matlet.2021.130890">10.1016/j.matlet.2021.130890</a>},
    number={130890}, journal={Materials Letters}, publisher={Elsevier BV}, author={Krüger,
    Jan Tobias and Hoyer, Kay-Peter and Schaper, Mirko}, year={2021} }'
  chicago: Krüger, Jan Tobias, Kay-Peter Hoyer, and Mirko Schaper. “Bioresorbable
    AgCe and AgCeLa Alloys for Adapted Fe-Based Implants.” <i>Materials Letters</i>
    306 (2021). <a href="https://doi.org/10.1016/j.matlet.2021.130890">https://doi.org/10.1016/j.matlet.2021.130890</a>.
  ieee: 'J. T. Krüger, K.-P. Hoyer, and M. Schaper, “Bioresorbable AgCe and AgCeLa
    alloys for adapted Fe-based implants,” <i>Materials Letters</i>, vol. 306, Art.
    no. 130890, 2021, doi: <a href="https://doi.org/10.1016/j.matlet.2021.130890">10.1016/j.matlet.2021.130890</a>.'
  mla: Krüger, Jan Tobias, et al. “Bioresorbable AgCe and AgCeLa Alloys for Adapted
    Fe-Based Implants.” <i>Materials Letters</i>, vol. 306, 130890, Elsevier BV, 2021,
    doi:<a href="https://doi.org/10.1016/j.matlet.2021.130890">10.1016/j.matlet.2021.130890</a>.
  short: J.T. Krüger, K.-P. Hoyer, M. Schaper, Materials Letters 306 (2021).
date_created: 2023-02-02T14:32:48Z
date_updated: 2023-06-01T14:34:08Z
department:
- _id: '9'
- _id: '158'
doi: 10.1016/j.matlet.2021.130890
intvolume: '       306'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
publication: Materials Letters
publication_identifier:
  issn:
  - 0167-577X
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Bioresorbable AgCe and AgCeLa alloys for adapted Fe-based implants
type: journal_article
user_id: '43720'
volume: 306
year: '2021'
...
---
_id: '41517'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title><jats:p>Within this research, the multiscale
    microstructural evolution before and after the tensile test of a FeCo alloy is
    addressed. X-ray <jats:italic>µ</jats:italic>-computer tomography (CT), electron
    backscattered diffraction (EBSD), and transmission electron microscopy (TEM) are
    employed to determine the microstructure on different length scales. Microstructural
    evolution is studied by performing EBSD of the same area before and after the
    tensile test. As a result, <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\langle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟨</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>001<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\rangle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟩</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>||TD, <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\langle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟨</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>011<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\rangle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟩</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>||TD are
    hard orientations and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\langle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟨</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>111<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\rangle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟩</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>||TD is soft
    orientations for deformation accommodation. It is not possible to predict the
    deformation of a single grain with the Taylor model. However, the Taylor model
    accurately predicts the orientation of all grains after deformation. {123}<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\langle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟨</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>111<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\rangle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟩</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula> is the most
    active slip system, and {112}<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\langle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟨</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula>111<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\rangle$$</jats:tex-math><mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⟩</mml:mo>\r\n
    \               </mml:math></jats:alternatives></jats:inline-formula> is the least
    active slip system. Both EBSD micrographs show grain subdivision after tensile
    testing. TEM images show the formation of dislocation cells. Correlative HRTEM
    images show unresolved lattice fringes at dislocation cell boundaries, whereas
    resolved lattice fringes are observed at dislocation cell interior. Since Schmid’s
    law is unable to predict the deformation behavior of grains, the boundary slip
    transmission accurately predicts the grain deformation behavior.</jats:p>"
author:
- first_name: Sudipta
  full_name: Pramanik, Sudipta
  last_name: Pramanik
- first_name: Lennart
  full_name: Tasche, Lennart
  id: '71508'
  last_name: Tasche
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Pramanik S, Tasche L, Hoyer K-P, Schaper M. Correlation between Taylor Model
    Prediction and Transmission Electron Microscopy-Based Microstructural Investigations
    of Quasi-In Situ Tensile Deformation of Additively Manufactured FeCo Alloy. <i>Journal
    of Materials Engineering and Performance</i>. 2021;30(11):8048-8056. doi:<a href="https://doi.org/10.1007/s11665-021-06065-9">10.1007/s11665-021-06065-9</a>
  apa: Pramanik, S., Tasche, L., Hoyer, K.-P., &#38; Schaper, M. (2021). Correlation
    between Taylor Model Prediction and Transmission Electron Microscopy-Based Microstructural
    Investigations of Quasi-In Situ Tensile Deformation of Additively Manufactured
    FeCo Alloy. <i>Journal of Materials Engineering and Performance</i>, <i>30</i>(11),
    8048–8056. <a href="https://doi.org/10.1007/s11665-021-06065-9">https://doi.org/10.1007/s11665-021-06065-9</a>
  bibtex: '@article{Pramanik_Tasche_Hoyer_Schaper_2021, title={Correlation between
    Taylor Model Prediction and Transmission Electron Microscopy-Based Microstructural
    Investigations of Quasi-In Situ Tensile Deformation of Additively Manufactured
    FeCo Alloy}, volume={30}, DOI={<a href="https://doi.org/10.1007/s11665-021-06065-9">10.1007/s11665-021-06065-9</a>},
    number={11}, journal={Journal of Materials Engineering and Performance}, publisher={Springer
    Science and Business Media LLC}, author={Pramanik, Sudipta and Tasche, Lennart
    and Hoyer, Kay-Peter and Schaper, Mirko}, year={2021}, pages={8048–8056} }'
  chicago: 'Pramanik, Sudipta, Lennart Tasche, Kay-Peter Hoyer, and Mirko Schaper.
    “Correlation between Taylor Model Prediction and Transmission Electron Microscopy-Based
    Microstructural Investigations of Quasi-In Situ Tensile Deformation of Additively
    Manufactured FeCo Alloy.” <i>Journal of Materials Engineering and Performance</i>
    30, no. 11 (2021): 8048–56. <a href="https://doi.org/10.1007/s11665-021-06065-9">https://doi.org/10.1007/s11665-021-06065-9</a>.'
  ieee: 'S. Pramanik, L. Tasche, K.-P. Hoyer, and M. Schaper, “Correlation between
    Taylor Model Prediction and Transmission Electron Microscopy-Based Microstructural
    Investigations of Quasi-In Situ Tensile Deformation of Additively Manufactured
    FeCo Alloy,” <i>Journal of Materials Engineering and Performance</i>, vol. 30,
    no. 11, pp. 8048–8056, 2021, doi: <a href="https://doi.org/10.1007/s11665-021-06065-9">10.1007/s11665-021-06065-9</a>.'
  mla: Pramanik, Sudipta, et al. “Correlation between Taylor Model Prediction and
    Transmission Electron Microscopy-Based Microstructural Investigations of Quasi-In
    Situ Tensile Deformation of Additively Manufactured FeCo Alloy.” <i>Journal of
    Materials Engineering and Performance</i>, vol. 30, no. 11, Springer Science and
    Business Media LLC, 2021, pp. 8048–56, doi:<a href="https://doi.org/10.1007/s11665-021-06065-9">10.1007/s11665-021-06065-9</a>.
  short: S. Pramanik, L. Tasche, K.-P. Hoyer, M. Schaper, Journal of Materials Engineering
    and Performance 30 (2021) 8048–8056.
date_created: 2023-02-02T14:39:53Z
date_updated: 2023-06-01T14:36:06Z
department:
- _id: '9'
- _id: '158'
doi: 10.1007/s11665-021-06065-9
intvolume: '        30'
issue: '11'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 8048-8056
publication: Journal of Materials Engineering and Performance
publication_identifier:
  issn:
  - 1059-9495
  - 1544-1024
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Correlation between Taylor Model Prediction and Transmission Electron Microscopy-Based
  Microstructural Investigations of Quasi-In Situ Tensile Deformation of Additively
  Manufactured FeCo Alloy
type: journal_article
user_id: '43720'
volume: 30
year: '2021'
...
---
_id: '41514'
article_number: '159544'
author:
- first_name: Jan Tobias
  full_name: Krüger, Jan Tobias
  id: '44307'
  last_name: Krüger
  orcid: 0000-0002-0827-9654
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Viviane
  full_name: Filor, Viviane
  last_name: Filor
- first_name: Sudipta
  full_name: Pramanik, Sudipta
  last_name: Pramanik
- first_name: Manfred
  full_name: Kietzmann, Manfred
  last_name: Kietzmann
- first_name: Jessica
  full_name: Meißner, Jessica
  last_name: Meißner
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Krüger JT, Hoyer K-P, Filor V, et al. Novel AgCa and AgCaLa alloys for Fe-based
    bioresorbable implants with adapted degradation. <i>Journal of Alloys and Compounds</i>.
    2021;871. doi:<a href="https://doi.org/10.1016/j.jallcom.2021.159544">10.1016/j.jallcom.2021.159544</a>
  apa: Krüger, J. T., Hoyer, K.-P., Filor, V., Pramanik, S., Kietzmann, M., Meißner,
    J., &#38; Schaper, M. (2021). Novel AgCa and AgCaLa alloys for Fe-based bioresorbable
    implants with adapted degradation. <i>Journal of Alloys and Compounds</i>, <i>871</i>,
    Article 159544. <a href="https://doi.org/10.1016/j.jallcom.2021.159544">https://doi.org/10.1016/j.jallcom.2021.159544</a>
  bibtex: '@article{Krüger_Hoyer_Filor_Pramanik_Kietzmann_Meißner_Schaper_2021, title={Novel
    AgCa and AgCaLa alloys for Fe-based bioresorbable implants with adapted degradation},
    volume={871}, DOI={<a href="https://doi.org/10.1016/j.jallcom.2021.159544">10.1016/j.jallcom.2021.159544</a>},
    number={159544}, journal={Journal of Alloys and Compounds}, publisher={Elsevier
    BV}, author={Krüger, Jan Tobias and Hoyer, Kay-Peter and Filor, Viviane and Pramanik,
    Sudipta and Kietzmann, Manfred and Meißner, Jessica and Schaper, Mirko}, year={2021}
    }'
  chicago: Krüger, Jan Tobias, Kay-Peter Hoyer, Viviane Filor, Sudipta Pramanik, Manfred
    Kietzmann, Jessica Meißner, and Mirko Schaper. “Novel AgCa and AgCaLa Alloys for
    Fe-Based Bioresorbable Implants with Adapted Degradation.” <i>Journal of Alloys
    and Compounds</i> 871 (2021). <a href="https://doi.org/10.1016/j.jallcom.2021.159544">https://doi.org/10.1016/j.jallcom.2021.159544</a>.
  ieee: 'J. T. Krüger <i>et al.</i>, “Novel AgCa and AgCaLa alloys for Fe-based bioresorbable
    implants with adapted degradation,” <i>Journal of Alloys and Compounds</i>, vol.
    871, Art. no. 159544, 2021, doi: <a href="https://doi.org/10.1016/j.jallcom.2021.159544">10.1016/j.jallcom.2021.159544</a>.'
  mla: Krüger, Jan Tobias, et al. “Novel AgCa and AgCaLa Alloys for Fe-Based Bioresorbable
    Implants with Adapted Degradation.” <i>Journal of Alloys and Compounds</i>, vol.
    871, 159544, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.jallcom.2021.159544">10.1016/j.jallcom.2021.159544</a>.
  short: J.T. Krüger, K.-P. Hoyer, V. Filor, S. Pramanik, M. Kietzmann, J. Meißner,
    M. Schaper, Journal of Alloys and Compounds 871 (2021).
date_created: 2023-02-02T14:34:42Z
date_updated: 2023-06-01T14:35:36Z
department:
- _id: '9'
- _id: '158'
doi: 10.1016/j.jallcom.2021.159544
intvolume: '       871'
keyword:
- Materials Chemistry
- Metals and Alloys
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
publication: Journal of Alloys and Compounds
publication_identifier:
  issn:
  - 0925-8388
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Novel AgCa and AgCaLa alloys for Fe-based bioresorbable implants with adapted
  degradation
type: journal_article
user_id: '43720'
volume: 871
year: '2021'
...
---
_id: '51202'
abstract:
- lang: eng
  text: <jats:p>When joining lightweight parts of various materials, clinching is
    a cost efficient solution. In a production line, the quality of a clinch point
    is primarily controlled by measurement of dimensions, which are accessible from
    outside. However, methods such as visual testing and measuring the bottom thickness
    as well as the outer diameter are not able to deliver any information about the
    most significant geometrical characteristic of the clinch point, neck thickness
    and undercut. Furthermore, ex-situ destructive methods such as microsectioning
    cannot detect elastic deformations and cracks that close after unloading. In order
    to exceed the current limits, a new non-destructive in-situ testing method for
    the clinching process is necessary. This work proposes a concept to characterize
    clinch points in-situ by combining two complementary non-destructive methods,
    namely, computed tomography (CT) and ultrasonic testing. Firstly, clinch points
    with different geometrical characteristics are analysed experimentally using ex-situ
    CT to get a highly spatially resolved 3D-image of the object. In this context,
    highly X-ray attenuating materials enhancing the visibility of the sheet-sheet
    interface are investigated. Secondly, the test specimens are modelled using finite
    element method (FEM) and a transient dynamic analysis (TDA) is conducted to study
    the effect of the geometrical differences on the deformation energy and to qualify
    the TDA as a fast in-situ non-destructive method for characterizing clinch points
    at high temporal resolution.</jats:p>
author:
- first_name: Daniel
  full_name: Köhler, Daniel
  last_name: Köhler
- first_name: Behdad
  full_name: Sadeghian, Behdad
  last_name: Sadeghian
- first_name: Robert
  full_name: Kupfer, Robert
  last_name: Kupfer
- first_name: Juliane
  full_name: Troschitz, Juliane
  last_name: Troschitz
- first_name: Maik
  full_name: Gude, Maik
  last_name: Gude
- first_name: Alexander
  full_name: Brosius, Alexander
  last_name: Brosius
citation:
  ama: Köhler D, Sadeghian B, Kupfer R, Troschitz J, Gude M, Brosius A. A Method for
    Characterization of Geometric Deviations in Clinch Points with Computed Tomography
    and Transient Dynamic Analysis. <i>Key Engineering Materials</i>. 2021;883:89-96.
    doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.89">10.4028/www.scientific.net/kem.883.89</a>
  apa: Köhler, D., Sadeghian, B., Kupfer, R., Troschitz, J., Gude, M., &#38; Brosius,
    A. (2021). A Method for Characterization of Geometric Deviations in Clinch Points
    with Computed Tomography and Transient Dynamic Analysis. <i>Key Engineering Materials</i>,
    <i>883</i>, 89–96. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.89">https://doi.org/10.4028/www.scientific.net/kem.883.89</a>
  bibtex: '@article{Köhler_Sadeghian_Kupfer_Troschitz_Gude_Brosius_2021, title={A
    Method for Characterization of Geometric Deviations in Clinch Points with Computed
    Tomography and Transient Dynamic Analysis}, volume={883}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.89">10.4028/www.scientific.net/kem.883.89</a>},
    journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
    author={Köhler, Daniel and Sadeghian, Behdad and Kupfer, Robert and Troschitz,
    Juliane and Gude, Maik and Brosius, Alexander}, year={2021}, pages={89–96} }'
  chicago: 'Köhler, Daniel, Behdad Sadeghian, Robert Kupfer, Juliane Troschitz, Maik
    Gude, and Alexander Brosius. “A Method for Characterization of Geometric Deviations
    in Clinch Points with Computed Tomography and Transient Dynamic Analysis.” <i>Key
    Engineering Materials</i> 883 (2021): 89–96. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.89">https://doi.org/10.4028/www.scientific.net/kem.883.89</a>.'
  ieee: 'D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius,
    “A Method for Characterization of Geometric Deviations in Clinch Points with Computed
    Tomography and Transient Dynamic Analysis,” <i>Key Engineering Materials</i>,
    vol. 883, pp. 89–96, 2021, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.89">10.4028/www.scientific.net/kem.883.89</a>.'
  mla: Köhler, Daniel, et al. “A Method for Characterization of Geometric Deviations
    in Clinch Points with Computed Tomography and Transient Dynamic Analysis.” <i>Key
    Engineering Materials</i>, vol. 883, Trans Tech Publications, Ltd., 2021, pp.
    89–96, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.89">10.4028/www.scientific.net/kem.883.89</a>.
  short: D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, A. Brosius, Key
    Engineering Materials 883 (2021) 89–96.
date_created: 2024-02-06T15:06:14Z
date_updated: 2025-06-02T20:19:57Z
department:
- _id: '157'
- _id: '43'
doi: 10.4028/www.scientific.net/kem.883.89
intvolume: '       883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 89-96
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
  name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Key Engineering Materials
publication_identifier:
  issn:
  - 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
status: public
title: A Method for Characterization of Geometric Deviations in Clinch Points with
  Computed Tomography and Transient Dynamic Analysis
type: journal_article
user_id: '83408'
volume: 883
year: '2021'
...
---
_id: '51198'
article_number: '100089'
author:
- first_name: D.
  full_name: Köhler, D.
  last_name: Köhler
- first_name: B.
  full_name: Sadeghian, B.
  last_name: Sadeghian
- first_name: J.
  full_name: Troschitz, J.
  last_name: Troschitz
- first_name: R.
  full_name: Kupfer, R.
  last_name: Kupfer
- first_name: M.
  full_name: Gude, M.
  last_name: Gude
- first_name: A.
  full_name: Brosius, A.
  last_name: Brosius
citation:
  ama: Köhler D, Sadeghian B, Troschitz J, Kupfer R, Gude M, Brosius A. Characterisation
    of lateral offsets in clinch points with computed tomography and transient dynamic
    analysis. <i>Journal of Advanced Joining Processes</i>. 2021;5. doi:<a href="https://doi.org/10.1016/j.jajp.2021.100089">10.1016/j.jajp.2021.100089</a>
  apa: Köhler, D., Sadeghian, B., Troschitz, J., Kupfer, R., Gude, M., &#38; Brosius,
    A. (2021). Characterisation of lateral offsets in clinch points with computed
    tomography and transient dynamic analysis. <i>Journal of Advanced Joining Processes</i>,
    <i>5</i>, Article 100089. <a href="https://doi.org/10.1016/j.jajp.2021.100089">https://doi.org/10.1016/j.jajp.2021.100089</a>
  bibtex: '@article{Köhler_Sadeghian_Troschitz_Kupfer_Gude_Brosius_2021, title={Characterisation
    of lateral offsets in clinch points with computed tomography and transient dynamic
    analysis}, volume={5}, DOI={<a href="https://doi.org/10.1016/j.jajp.2021.100089">10.1016/j.jajp.2021.100089</a>},
    number={100089}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
    BV}, author={Köhler, D. and Sadeghian, B. and Troschitz, J. and Kupfer, R. and
    Gude, M. and Brosius, A.}, year={2021} }'
  chicago: Köhler, D., B. Sadeghian, J. Troschitz, R. Kupfer, M. Gude, and A. Brosius.
    “Characterisation of Lateral Offsets in Clinch Points with Computed Tomography
    and Transient Dynamic Analysis.” <i>Journal of Advanced Joining Processes</i>
    5 (2021). <a href="https://doi.org/10.1016/j.jajp.2021.100089">https://doi.org/10.1016/j.jajp.2021.100089</a>.
  ieee: 'D. Köhler, B. Sadeghian, J. Troschitz, R. Kupfer, M. Gude, and A. Brosius,
    “Characterisation of lateral offsets in clinch points with computed tomography
    and transient dynamic analysis,” <i>Journal of Advanced Joining Processes</i>,
    vol. 5, Art. no. 100089, 2021, doi: <a href="https://doi.org/10.1016/j.jajp.2021.100089">10.1016/j.jajp.2021.100089</a>.'
  mla: Köhler, D., et al. “Characterisation of Lateral Offsets in Clinch Points with
    Computed Tomography and Transient Dynamic Analysis.” <i>Journal of Advanced Joining
    Processes</i>, vol. 5, 100089, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.jajp.2021.100089">10.1016/j.jajp.2021.100089</a>.
  short: D. Köhler, B. Sadeghian, J. Troschitz, R. Kupfer, M. Gude, A. Brosius, Journal
    of Advanced Joining Processes 5 (2021).
date_created: 2024-02-06T15:05:00Z
date_updated: 2025-06-02T20:21:00Z
department:
- _id: '157'
- _id: '43'
doi: 10.1016/j.jajp.2021.100089
intvolume: '         5'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Engineering (miscellaneous)
- Chemical Engineering (miscellaneous)
language:
- iso: eng
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
  name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Journal of Advanced Joining Processes
publication_identifier:
  issn:
  - 2666-3309
publication_status: published
publisher: Elsevier BV
status: public
title: Characterisation of lateral offsets in clinch points with computed tomography
  and transient dynamic analysis
type: journal_article
user_id: '83408'
volume: 5
year: '2021'
...
---
_id: '23431'
abstract:
- lang: eng
  text: As an effective and accurate method for modelling composite materials, mean-field
    homogenization is still not well studied in modelling non-linear and damage behaviours
    of UD composites. Investigated micro FE-simulations show that the matrix of UD
    composites exhibits different average plastic behaviour, named as average asymmetric
    matrix plasticity (AAMP), when the composite behaves different under shear, longitudinal
    and transverse loadings. In this study, a non-linear mean-field debonding model
    (NMFDM) combining a mean-field model and a fibre–matrix interface debonding model,
    is developed to simulate UD composites under consideration of AAMP, fibre–matrix
    interface damage and progressive failure. AAMP is considered by using so-called
    stress mode factor, which is expressed in terms of basic invariants of the matrix
    deviatoric stress tensor and is used as an indicator for detection of differences
    in the loading mode. The material behaviour of UD composites with imperfect interface
    is assumed identical as for perfect interface and stiffness reduced fibres. Progressive
    failure criteria are established with consideration of fibre breakage and matrix
    crack for different fibre orientations. As a representative example for the NMFDM,
    a C30/E201 UD composite is studied. To verify the model, experiments are conducted
    on polymers, carbon fibres and UD CFRPs. Finally, the model is applied to simulate
    a perforated CFRP laminate, which shows excellent prediction ability on deformation,
    debonding and progressive failure.
article_number: '109209'
author:
- first_name: C.
  full_name: Cheng, C.
  last_name: Cheng
- first_name: Z.
  full_name: Wang, Z.
  last_name: Wang
- first_name: Z.
  full_name: Jin, Z.
  last_name: Jin
- first_name: X.
  full_name: Ju, X.
  last_name: Ju
- first_name: Swetlana
  full_name: Schweizer, Swetlana
  id: '8938'
  last_name: Schweizer
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
citation:
  ama: 'Cheng C, Wang Z, Jin Z, et al. Non-linear mean-field modelling of UD composite
    laminates accounting for average asymmetric plasticity of the matrix, debonding
    and progressive failure. <i>Composites Part B: Engineering</i>. 2021;224. doi:<a
    href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>'
  apa: 'Cheng, C., Wang, Z., Jin, Z., Ju, X., Schweizer, S., Tröster, T., &#38; Mahnken,
    R. (2021). Non-linear mean-field modelling of UD composite laminates accounting
    for average asymmetric plasticity of the matrix, debonding and progressive failure.
    <i>Composites Part B: Engineering</i>, <i>224</i>, Article 109209. <a href="https://doi.org/10.1016/j.compositesb.2021.109209">https://doi.org/10.1016/j.compositesb.2021.109209</a>'
  bibtex: '@article{Cheng_Wang_Jin_Ju_Schweizer_Tröster_Mahnken_2021, title={Non-linear
    mean-field modelling of UD composite laminates accounting for average asymmetric
    plasticity of the matrix, debonding and progressive failure}, volume={224}, DOI={<a
    href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>},
    number={109209}, journal={Composites Part B: Engineering}, author={Cheng, C. and
    Wang, Z. and Jin, Z. and Ju, X. and Schweizer, Swetlana and Tröster, Thomas and
    Mahnken, Rolf}, year={2021} }'
  chicago: 'Cheng, C., Z. Wang, Z. Jin, X. Ju, Swetlana Schweizer, Thomas Tröster,
    and Rolf Mahnken. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting
    for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.”
    <i>Composites Part B: Engineering</i> 224 (2021). <a href="https://doi.org/10.1016/j.compositesb.2021.109209">https://doi.org/10.1016/j.compositesb.2021.109209</a>.'
  ieee: 'C. Cheng <i>et al.</i>, “Non-linear mean-field modelling of UD composite
    laminates accounting for average asymmetric plasticity of the matrix, debonding
    and progressive failure,” <i>Composites Part B: Engineering</i>, vol. 224, Art.
    no. 109209, 2021, doi: <a href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>.'
  mla: 'Cheng, C., et al. “Non-Linear Mean-Field Modelling of UD Composite Laminates
    Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive
    Failure.” <i>Composites Part B: Engineering</i>, vol. 224, 109209, 2021, doi:<a
    href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>.'
  short: 'C. Cheng, Z. Wang, Z. Jin, X. Ju, S. Schweizer, T. Tröster, R. Mahnken,
    Composites Part B: Engineering 224 (2021).'
date_created: 2021-08-18T06:20:21Z
date_updated: 2025-06-06T08:08:32Z
department:
- _id: '9'
- _id: '154'
- _id: '321'
- _id: '149'
doi: 10.1016/j.compositesb.2021.109209
intvolume: '       224'
keyword:
- Non-linear mean-field homogenization Average asymmetric plasticity of matrix Fibre–matrix
  interface debonding Micro-mechanical FE-simulation Progressive failure
language:
- iso: eng
publication: 'Composites Part B: Engineering'
publication_identifier:
  issn:
  - 1359-8368
publication_status: published
quality_controlled: '1'
status: public
title: Non-linear mean-field modelling of UD composite laminates accounting for average
  asymmetric plasticity of the matrix, debonding and progressive failure
type: journal_article
user_id: '15952'
volume: 224
year: '2021'
...
---
_id: '41508'
article_number: '142312'
author:
- first_name: Alan Adam
  full_name: Camberg, Alan Adam
  id: '60544'
  last_name: Camberg
- first_name: Anatolii
  full_name: Andreiev, Anatolii
  id: '50215'
  last_name: Andreiev
- first_name: Sudipta
  full_name: Pramanik, Sudipta
  last_name: Pramanik
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: 'Camberg AA, Andreiev A, Pramanik S, Hoyer K-P, Tröster T, Schaper M. Strength
    enhancement of AlMg sheet metal parts by rapid heating and subsequent cold die
    stamping of severely cold-rolled blanks. <i>Materials Science and Engineering:
    A</i>. 2021;831. doi:<a href="https://doi.org/10.1016/j.msea.2021.142312">10.1016/j.msea.2021.142312</a>'
  apa: 'Camberg, A. A., Andreiev, A., Pramanik, S., Hoyer, K.-P., Tröster, T., &#38;
    Schaper, M. (2021). Strength enhancement of AlMg sheet metal parts by rapid heating
    and subsequent cold die stamping of severely cold-rolled blanks. <i>Materials
    Science and Engineering: A</i>, <i>831</i>, Article 142312. <a href="https://doi.org/10.1016/j.msea.2021.142312">https://doi.org/10.1016/j.msea.2021.142312</a>'
  bibtex: '@article{Camberg_Andreiev_Pramanik_Hoyer_Tröster_Schaper_2021, title={Strength
    enhancement of AlMg sheet metal parts by rapid heating and subsequent cold die
    stamping of severely cold-rolled blanks}, volume={831}, DOI={<a href="https://doi.org/10.1016/j.msea.2021.142312">10.1016/j.msea.2021.142312</a>},
    number={142312}, journal={Materials Science and Engineering: A}, publisher={Elsevier
    BV}, author={Camberg, Alan Adam and Andreiev, Anatolii and Pramanik, Sudipta and
    Hoyer, Kay-Peter and Tröster, Thomas and Schaper, Mirko}, year={2021} }'
  chicago: 'Camberg, Alan Adam, Anatolii Andreiev, Sudipta Pramanik, Kay-Peter Hoyer,
    Thomas Tröster, and Mirko Schaper. “Strength Enhancement of AlMg Sheet Metal Parts
    by Rapid Heating and Subsequent Cold Die Stamping of Severely Cold-Rolled Blanks.”
    <i>Materials Science and Engineering: A</i> 831 (2021). <a href="https://doi.org/10.1016/j.msea.2021.142312">https://doi.org/10.1016/j.msea.2021.142312</a>.'
  ieee: 'A. A. Camberg, A. Andreiev, S. Pramanik, K.-P. Hoyer, T. Tröster, and M.
    Schaper, “Strength enhancement of AlMg sheet metal parts by rapid heating and
    subsequent cold die stamping of severely cold-rolled blanks,” <i>Materials Science
    and Engineering: A</i>, vol. 831, Art. no. 142312, 2021, doi: <a href="https://doi.org/10.1016/j.msea.2021.142312">10.1016/j.msea.2021.142312</a>.'
  mla: 'Camberg, Alan Adam, et al. “Strength Enhancement of AlMg Sheet Metal Parts
    by Rapid Heating and Subsequent Cold Die Stamping of Severely Cold-Rolled Blanks.”
    <i>Materials Science and Engineering: A</i>, vol. 831, 142312, Elsevier BV, 2021,
    doi:<a href="https://doi.org/10.1016/j.msea.2021.142312">10.1016/j.msea.2021.142312</a>.'
  short: 'A.A. Camberg, A. Andreiev, S. Pramanik, K.-P. Hoyer, T. Tröster, M. Schaper,
    Materials Science and Engineering: A 831 (2021).'
date_created: 2023-02-02T14:31:53Z
date_updated: 2025-06-06T08:07:18Z
department:
- _id: '9'
- _id: '158'
- _id: '149'
- _id: '321'
doi: 10.1016/j.msea.2021.142312
intvolume: '       831'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
publication: 'Materials Science and Engineering: A'
publication_identifier:
  issn:
  - 0921-5093
publication_status: published
publisher: Elsevier BV
status: public
title: Strength enhancement of AlMg sheet metal parts by rapid heating and subsequent
  cold die stamping of severely cold-rolled blanks
type: journal_article
user_id: '15952'
volume: 831
year: '2021'
...
---
_id: '57971'
abstract:
- lang: eng
  text: 'Repetitive TMS (rTMS) with a frequency of 5-10~Hz is widely used for language
    mapping. However, it may be accompanied by discomfort and is limited in the number
    and reliability of evoked language errors. We, here, systematically tested the
    influence of different stimulation frequencies (i.e., 10, 30, and 50 Hz) on tolerability,
    number, reliability, and cortical distribution of language errors aiming at improved
    language mapping. 15 right-handed, healthy subjects (m~=~8, median age: 29 yrs)
    were investigated in two sessions, separated by 2-5 days. In each session, 10,
    30, and 50 Hz rTMS were applied over the left hemisphere in a randomized order
    during a picture naming task. Overall, 30 Hz rTMS evoked significantly more errors
    (20 $\pm$ 12{%}) compared to 50 Hz (12 $\pm$ 8{%}; p {\textless}.01), whereas
    error rates were comparable between 30/50 and 10~Hz (18 $\pm$ 11{%}). Across all
    conditions, a significantly higher error rate was found in Session 1 (19 $\pm$
    13{%}) compared to Session 2 (13 $\pm$ 7{%}, p {\textless}.05). The error rate
    was poorly reliable between sessions for 10 (intraclass correlation coefficient,
    ICC~=~.315) and 30 Hz (ICC~=~.427), whereas 50 Hz showed a moderate reliability
    (ICC~=~.597). Spatial reliability of language errors was low to moderate with
    a tendency toward increased reliability for higher frequencies, for example, within
    frontal regions. Compared to 10~Hz, both, 30 and 50 Hz were rated as less painful.
    Taken together, our data favor the use of rTMS-protocols employing higher frequencies
    for evoking language errors reliably and with reduced discomfort, depending on
    the region of interest.'
author:
- first_name: Charlotte
  full_name: Nettekoven, Charlotte
  last_name: Nettekoven
- first_name: Julia
  full_name: Pieczewski, Julia
  last_name: Pieczewski
- first_name: Volker
  full_name: Neuschmelting, Volker
  last_name: Neuschmelting
- first_name: Kristina
  full_name: Jonas, Kristina
  id: '94540'
  last_name: Jonas
  orcid: 0000-0002-1067-9139
- first_name: Roland
  full_name: Goldbrunner, Roland
  last_name: Goldbrunner
- first_name: Christian
  full_name: Grefkes, Christian
  last_name: Grefkes
- first_name: Carolin
  full_name: Weiss Lucas, Carolin
  last_name: Weiss Lucas
citation:
  ama: Nettekoven C, Pieczewski J, Neuschmelting V, et al. Improving the efficacy
    and reliability of rTMS language mapping by increasing the stimulation frequency.
    <i>Human brain mapping</i>. 2021;42(16):5309–5321. doi:<a href="https://doi.org/10.1002/hbm.25619">10.1002/hbm.25619</a>
  apa: Nettekoven, C., Pieczewski, J., Neuschmelting, V., Jonas, K., Goldbrunner,
    R., Grefkes, C., &#38; Weiss Lucas, C. (2021). Improving the efficacy and reliability
    of rTMS language mapping by increasing the stimulation frequency. <i>Human Brain
    Mapping</i>, <i>42</i>(16), 5309–5321. <a href="https://doi.org/10.1002/hbm.25619">https://doi.org/10.1002/hbm.25619</a>
  bibtex: '@article{Nettekoven_Pieczewski_Neuschmelting_Jonas_Goldbrunner_Grefkes_Weiss
    Lucas_2021, title={Improving the efficacy and reliability of rTMS language mapping
    by increasing the stimulation frequency}, volume={42}, DOI={<a href="https://doi.org/10.1002/hbm.25619">10.1002/hbm.25619</a>},
    number={16}, journal={Human brain mapping}, author={Nettekoven, Charlotte and
    Pieczewski, Julia and Neuschmelting, Volker and Jonas, Kristina and Goldbrunner,
    Roland and Grefkes, Christian and Weiss Lucas, Carolin}, year={2021}, pages={5309–5321}
    }'
  chicago: 'Nettekoven, Charlotte, Julia Pieczewski, Volker Neuschmelting, Kristina
    Jonas, Roland Goldbrunner, Christian Grefkes, and Carolin Weiss Lucas. “Improving
    the Efficacy and Reliability of RTMS Language Mapping by Increasing the Stimulation
    Frequency.” <i>Human Brain Mapping</i> 42, no. 16 (2021): 5309–5321. <a href="https://doi.org/10.1002/hbm.25619">https://doi.org/10.1002/hbm.25619</a>.'
  ieee: 'C. Nettekoven <i>et al.</i>, “Improving the efficacy and reliability of rTMS
    language mapping by increasing the stimulation frequency,” <i>Human brain mapping</i>,
    vol. 42, no. 16, pp. 5309–5321, 2021, doi: <a href="https://doi.org/10.1002/hbm.25619">10.1002/hbm.25619</a>.'
  mla: Nettekoven, Charlotte, et al. “Improving the Efficacy and Reliability of RTMS
    Language Mapping by Increasing the Stimulation Frequency.” <i>Human Brain Mapping</i>,
    vol. 42, no. 16, 2021, pp. 5309–5321, doi:<a href="https://doi.org/10.1002/hbm.25619">10.1002/hbm.25619</a>.
  short: C. Nettekoven, J. Pieczewski, V. Neuschmelting, K. Jonas, R. Goldbrunner,
    C. Grefkes, C. Weiss Lucas, Human Brain Mapping 42 (2021) 5309–5321.
date_created: 2025-01-06T12:11:43Z
date_updated: 2026-03-02T13:33:34Z
doi: 10.1002/hbm.25619
extern: '1'
intvolume: '        42'
issue: '16'
keyword:
- Adult
- Brain Mapping
- Cerebral Cortex/diagnostic imaging/physiology
- Female
- Humans
- Magnetic Resonance Imaging
- Male
- Pattern Recognition
- Psycholinguistics
- Reproducibility of Results
- Speech/physiology
- Transcranial Magnetic Stimulation
- Visual/physiology
- Young Adult
language:
- iso: eng
page: 5309–5321
publication: Human brain mapping
status: public
title: Improving the efficacy and reliability of rTMS language mapping by increasing
  the stimulation frequency
type: journal_article
user_id: '61071'
volume: 42
year: '2021'
...
---
_id: '23796'
author:
- first_name: Sören Antonius
  full_name: Bernemann, Sören Antonius
  id: '70108'
  last_name: Bernemann
citation:
  ama: Bernemann SA. <i>Erstellung eines CFD-Modells für die Entwicklung eines innovativen
    Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen Abfällen</i>.
    Paderborn; 2020.
  apa: Bernemann, S. A. (2020). <i>Erstellung eines CFD-Modells für die Entwicklung
    eines innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen
    Abfällen</i>. Paderborn.
  bibtex: '@book{Bernemann_2020, place={Paderborn}, title={Erstellung eines CFD-Modells
    für die Entwicklung eines innovativen Trennapparates zur Stickstoffrückgewinnung
    aus landwirtschaftlichen Abfällen}, author={Bernemann, Sören Antonius}, year={2020}
    }'
  chicago: Bernemann, Sören Antonius. <i>Erstellung eines CFD-Modells für die Entwicklung
    eines innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen
    Abfällen</i>. Paderborn, 2020.
  ieee: S. A. Bernemann, <i>Erstellung eines CFD-Modells für die Entwicklung eines
    innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen
    Abfällen</i>. Paderborn, 2020.
  mla: Bernemann, Sören Antonius. <i>Erstellung eines CFD-Modells für die Entwicklung
    eines innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen
    Abfällen</i>. 2020.
  short: S.A. Bernemann, Erstellung eines CFD-Modells für die Entwicklung eines innovativen
    Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen Abfällen,
    Paderborn, 2020.
date_created: 2021-09-06T12:46:15Z
date_updated: 2022-01-06T06:56:00Z
department:
- _id: '9'
- _id: '145'
keyword:
- CFD
- landwirtschaftliche Abfälle
- Volume-of-Fluid
language:
- iso: ger
place: Paderborn
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
status: public
supervisor:
- first_name: René
  full_name: Bertling, René
  id: '30050'
  last_name: Bertling
title: Erstellung eines CFD-Modells für die Entwicklung eines innovativen Trennapparates
  zur Stickstoffrückgewinnung aus landwirtschaftlichen Abfällen
type: mastersthesis
user_id: '70108'
year: '2020'
...
---
_id: '16249'
abstract:
- lang: eng
  text: Timing plays a crucial role in the context of information security investments.
    We regard timing in two dimensions, namely the time of announcement in relation
    to the time of investment and the time of announcement in relation to the time
    of a fundamental security incident. The financial value of information security
    investments is assessed by examining the relationship between the investment announcements
    and their stock market reaction focusing on the two time dimensions. Using an
    event study methodology, we found that both dimensions influence the stock market
    return of the investing organization. Our results indicate that (1) after fundamental
    security incidents in a given industry, the stock price will react more positively
    to a firm’s announcement of actual information security investments than to announcements
    of the intention to invest; (2) the stock price will react more positively to
    a firm’s announcements of the intention to invest after the fundamental security
    incident compared to before; and (3) the stock price will react more positively
    to a firm’s announcements of actual information security investments after the
    fundamental security incident compared to before. Overall, the lowest abnormal
    return can be expected when the intention to invest is announced before a fundamental
    information security incident and the highest return when actual investing after
    a fundamental information security incident in the respective industry.
author:
- first_name: Eva
  full_name: Szubartowicz, Eva
  last_name: Szubartowicz
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: 'Szubartowicz E, Schryen G. Timing in Information Security: An Event Study
    on the Impact of Information Security Investment Announcements. <i>Journal of
    Information System Security</i>. 2020;16(1):3-31.'
  apa: 'Szubartowicz, E., &#38; Schryen, G. (2020). Timing in Information Security:
    An Event Study on the Impact of Information Security Investment Announcements.
    <i>Journal of Information System Security</i>, <i>16</i>(1), 3–31.'
  bibtex: '@article{Szubartowicz_Schryen_2020, title={Timing in Information Security:
    An Event Study on the Impact of Information Security Investment Announcements},
    volume={16}, number={1}, journal={Journal of Information System Security}, publisher={Information
    Institute Publishing, Washington DC, USA}, author={Szubartowicz, Eva and Schryen,
    Guido}, year={2020}, pages={3–31} }'
  chicago: 'Szubartowicz, Eva, and Guido Schryen. “Timing in Information Security:
    An Event Study on the Impact of Information Security Investment Announcements.”
    <i>Journal of Information System Security</i> 16, no. 1 (2020): 3–31.'
  ieee: 'E. Szubartowicz and G. Schryen, “Timing in Information Security: An Event
    Study on the Impact of Information Security Investment Announcements,” <i>Journal
    of Information System Security</i>, vol. 16, no. 1, pp. 3–31, 2020.'
  mla: 'Szubartowicz, Eva, and Guido Schryen. “Timing in Information Security: An
    Event Study on the Impact of Information Security Investment Announcements.” <i>Journal
    of Information System Security</i>, vol. 16, no. 1, Information Institute Publishing,
    Washington DC, USA, 2020, pp. 3–31.'
  short: E. Szubartowicz, G. Schryen, Journal of Information System Security 16 (2020)
    3–31.
date_created: 2020-03-05T10:29:00Z
date_updated: 2022-01-06T06:52:47Z
ddc:
- '000'
department:
- _id: '277'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2020-03-05T10:26:11Z
  date_updated: 2020-03-05T10:35:49Z
  file_id: '16250'
  file_name: Timing in Information Security - JISSEC format PREPUBLICATION.pdf
  file_size: 478056
  relation: main_file
file_date_updated: 2020-03-05T10:35:49Z
has_accepted_license: '1'
intvolume: '        16'
issue: '1'
keyword:
- Event Study
- Information Security
- Investment Announcements
- Stock Price Reaction
- Value of Information Security Investments
language:
- iso: eng
oa: '1'
page: 3 - 31
publication: Journal of Information System Security
publisher: Information Institute Publishing, Washington DC, USA
status: public
title: 'Timing in Information Security: An Event Study on the Impact of Information
  Security Investment Announcements'
type: journal_article
user_id: '61579'
volume: 16
year: '2020'
...
---
_id: '27117'
abstract:
- lang: eng
  text: 'Through co-occurrence analysis of 1139 documents (1964-2018) we identified
    trends in the discussions about the implementation of student teaching evaluation
    (SET). We found that: (1) Attention to SET originated in the US in the 1970s,
    spreading to German-speaking countries in the mid-1990s and continuing in China
    and Latin America in the early 2000s. (2) SET is commonly viewed as a control
    tool deserving methodological improvement, while bias is debated in the US. We
    also found local trajectories: (3) Whereas in the US and Latin America SET is
    primarily seen as a management tool, German-speaking and Chinese authors reflect
    more on improving teaching. Chinese scholars consider SET a valid instrument for
    state control associated with artificial intelligence. Also, (4) SET is commonly
    used in medical education in the US and the German-speaking region and in physical
    education in China. We conclude that SET is discussed cross-nationally but affected
    by national path dependencies.'
article_type: original
author:
- first_name: Pedro
  full_name: Pineda, Pedro
  last_name: Pineda
- first_name: Isabel
  full_name: Steinhardt, Isabel
  id: '90339'
  last_name: Steinhardt
  orcid: https://orcid.org/0000-0002-2590-6189
citation:
  ama: 'Pineda P, Steinhardt I. The Debate on student evaluations of teaching: global
    convergence confronts higher education traditions. <i>Teaching in Higher Education</i>.
    Published online 2020:1-21. doi:<a href="https://doi.org/10.1080/13562517.2020.1863351">10.1080/13562517.2020.1863351</a>'
  apa: 'Pineda, P., &#38; Steinhardt, I. (2020). The Debate on student evaluations
    of teaching: global convergence confronts higher education traditions. <i>Teaching
    in Higher Education</i>, 1–21. <a href="https://doi.org/10.1080/13562517.2020.1863351">https://doi.org/10.1080/13562517.2020.1863351</a>'
  bibtex: '@article{Pineda_Steinhardt_2020, title={The Debate on student evaluations
    of teaching: global convergence confronts higher education traditions}, DOI={<a
    href="https://doi.org/10.1080/13562517.2020.1863351">10.1080/13562517.2020.1863351</a>},
    journal={Teaching in Higher Education}, author={Pineda, Pedro and Steinhardt,
    Isabel}, year={2020}, pages={1–21} }'
  chicago: 'Pineda, Pedro, and Isabel Steinhardt. “The Debate on Student Evaluations
    of Teaching: Global Convergence Confronts Higher Education Traditions.” <i>Teaching
    in Higher Education</i>, 2020, 1–21. <a href="https://doi.org/10.1080/13562517.2020.1863351">https://doi.org/10.1080/13562517.2020.1863351</a>.'
  ieee: 'P. Pineda and I. Steinhardt, “The Debate on student evaluations of teaching:
    global convergence confronts higher education traditions,” <i>Teaching in Higher
    Education</i>, pp. 1–21, 2020, doi: <a href="https://doi.org/10.1080/13562517.2020.1863351">10.1080/13562517.2020.1863351</a>.'
  mla: 'Pineda, Pedro, and Isabel Steinhardt. “The Debate on Student Evaluations of
    Teaching: Global Convergence Confronts Higher Education Traditions.” <i>Teaching
    in Higher Education</i>, 2020, pp. 1–21, doi:<a href="https://doi.org/10.1080/13562517.2020.1863351">10.1080/13562517.2020.1863351</a>.'
  short: P. Pineda, I. Steinhardt, Teaching in Higher Education (2020) 1–21.
date_created: 2021-11-03T13:01:53Z
date_updated: 2022-01-11T16:07:08Z
doi: 10.1080/13562517.2020.1863351
extern: '1'
keyword:
- academic discourse
- bibliometric review
- quality assurance
- student evaluation of teaching
- teaching evaluation
language:
- iso: eng
page: 1-21
publication: Teaching in Higher Education
publication_identifier:
  issn:
  - 1356-2517
  - 1470-1294
publication_status: published
quality_controlled: '1'
status: public
title: 'The Debate on student evaluations of teaching: global convergence confronts
  higher education traditions'
type: journal_article
user_id: '90339'
year: '2020'
...