---
_id: '26283'
author:
- first_name: Carolin
  full_name: Lüders, Carolin
  last_name: Lüders
- first_name: Matthias
  full_name: Pukrop, Matthias
  id: '64535'
  last_name: Pukrop
- first_name: Elena
  full_name: Rozas, Elena
  last_name: Rozas
- first_name: Christian
  full_name: Schneider, Christian
  last_name: Schneider
- first_name: Sven
  full_name: Höfling, Sven
  last_name: Höfling
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Marc
  full_name: Aßmann, Marc
  last_name: Aßmann
citation:
  ama: Lüders C, Pukrop M, Rozas E, et al. Quantifying Quantum Coherence in Polariton
    Condensates. <i>PRX Quantum</i>. Published online 2021. doi:<a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>
  apa: Lüders, C., Pukrop, M., Rozas, E., Schneider, C., Höfling, S., Sperling, J.,
    Schumacher, S., &#38; Aßmann, M. (2021). Quantifying Quantum Coherence in Polariton
    Condensates. <i>PRX Quantum</i>. <a href="https://doi.org/10.1103/prxquantum.2.030320">https://doi.org/10.1103/prxquantum.2.030320</a>
  bibtex: '@article{Lüders_Pukrop_Rozas_Schneider_Höfling_Sperling_Schumacher_Aßmann_2021,
    title={Quantifying Quantum Coherence in Polariton Condensates}, DOI={<a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>},
    journal={PRX Quantum}, author={Lüders, Carolin and Pukrop, Matthias and Rozas,
    Elena and Schneider, Christian and Höfling, Sven and Sperling, Jan and Schumacher,
    Stefan and Aßmann, Marc}, year={2021} }'
  chicago: Lüders, Carolin, Matthias Pukrop, Elena Rozas, Christian Schneider, Sven
    Höfling, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Quantifying Quantum
    Coherence in Polariton Condensates.” <i>PRX Quantum</i>, 2021. <a href="https://doi.org/10.1103/prxquantum.2.030320">https://doi.org/10.1103/prxquantum.2.030320</a>.
  ieee: 'C. Lüders <i>et al.</i>, “Quantifying Quantum Coherence in Polariton Condensates,”
    <i>PRX Quantum</i>, 2021, doi: <a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>.'
  mla: Lüders, Carolin, et al. “Quantifying Quantum Coherence in Polariton Condensates.”
    <i>PRX Quantum</i>, 2021, doi:<a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>.
  short: C. Lüders, M. Pukrop, E. Rozas, C. Schneider, S. Höfling, J. Sperling, S.
    Schumacher, M. Aßmann, PRX Quantum (2021).
date_created: 2021-10-15T16:00:39Z
date_updated: 2023-04-20T15:11:36Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '706'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/prxquantum.2.030320
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
  name: 'TRR 142 - A4: TRR 142 - Subproject A4'
publication: PRX Quantum
publication_identifier:
  issn:
  - 2691-3399
publication_status: published
status: public
title: Quantifying Quantum Coherence in Polariton Condensates
type: journal_article
user_id: '16199'
year: '2021'
...
---
_id: '21946'
abstract:
- lang: eng
  text: Lithium niobate (LiNbO3), a material frequently used in optical applications,
    hosts different kinds of polarons that significantly affect many of its physical
    properties. In this study, a variety of electron polarons, namely free, bound,
    and bipolarons, are analyzed using first-principles calculations. We perform a
    full structural optimization based on density-functional theory for selected intrinsic
    defects with special attention to the role of symmetry-breaking distortions that
    lower the total energy. The cations hosting the various polarons relax to a different
    degree, with a larger relaxation corresponding to a larger gap between the defect
    level and the conduction-band edge. The projected density of states reveals that
    the polaron states are formerly empty Nb 4d states lowered into the band gap.
    Optical absorption spectra are derived within the independent-particle approximation,
    corrected by the GW approximation that yields a wider band gap and by including
    excitonic effects within the Bethe-Salpeter equation. Comparing the calculated
    spectra with the density of states, we find that the defect peak observed in the
    optical absorption stems from transitions between the defect level and a continuum
    of empty Nb 4d states. Signatures of polarons are further analyzed in the reflectivity
    and other experimentally measurable optical coefficients.
article_type: original
author:
- first_name: Falko
  full_name: Schmidt, Falko
  id: '35251'
  last_name: Schmidt
  orcid: 0000-0002-5071-5528
- first_name: Agnieszka L.
  full_name: Kozub, Agnieszka L.
  id: '77566'
  last_name: Kozub
  orcid: https://orcid.org/0000-0001-6584-0201
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
citation:
  ama: 'Schmidt F, Kozub AL, Gerstmann U, Schmidt WG, Schindlmayr A. Electron polarons
    in lithium niobate: Charge localization, lattice deformation, and optical response.
    <i>Crystals</i>. 2021;11:542. doi:<a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>'
  apa: 'Schmidt, F., Kozub, A. L., Gerstmann, U., Schmidt, W. G., &#38; Schindlmayr,
    A. (2021). Electron polarons in lithium niobate: Charge localization, lattice
    deformation, and optical response. <i>Crystals</i>, <i>11</i>, 542. <a href="https://doi.org/10.3390/cryst11050542">https://doi.org/10.3390/cryst11050542</a>'
  bibtex: '@article{Schmidt_Kozub_Gerstmann_Schmidt_Schindlmayr_2021, title={Electron
    polarons in lithium niobate: Charge localization, lattice deformation, and optical
    response}, volume={11}, DOI={<a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>},
    journal={Crystals}, publisher={MDPI}, author={Schmidt, Falko and Kozub, Agnieszka
    L. and Gerstmann, Uwe and Schmidt, Wolf Gero and Schindlmayr, Arno}, year={2021},
    pages={542} }'
  chicago: 'Schmidt, Falko, Agnieszka L. Kozub, Uwe Gerstmann, Wolf Gero Schmidt,
    and Arno Schindlmayr. “Electron Polarons in Lithium Niobate: Charge Localization,
    Lattice Deformation, and Optical Response.” <i>Crystals</i> 11 (2021): 542. <a
    href="https://doi.org/10.3390/cryst11050542">https://doi.org/10.3390/cryst11050542</a>.'
  ieee: 'F. Schmidt, A. L. Kozub, U. Gerstmann, W. G. Schmidt, and A. Schindlmayr,
    “Electron polarons in lithium niobate: Charge localization, lattice deformation,
    and optical response,” <i>Crystals</i>, vol. 11, p. 542, 2021, doi: <a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>.'
  mla: 'Schmidt, Falko, et al. “Electron Polarons in Lithium Niobate: Charge Localization,
    Lattice Deformation, and Optical Response.” <i>Crystals</i>, vol. 11, MDPI, 2021,
    p. 542, doi:<a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>.'
  short: F. Schmidt, A.L. Kozub, U. Gerstmann, W.G. Schmidt, A. Schindlmayr, Crystals
    11 (2021) 542.
date_created: 2021-05-03T09:36:13Z
date_updated: 2023-04-21T11:20:15Z
ddc:
- '530'
department:
- _id: '296'
- _id: '230'
- _id: '429'
- _id: '295'
- _id: '15'
- _id: '170'
- _id: '35'
- _id: '790'
doi: 10.3390/cryst11050542
external_id:
  isi:
  - '000653822700001'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2021-05-13T16:47:11Z
  date_updated: 2021-05-13T16:51:41Z
  description: Creative Commons Attribution 4.0 International Public License (CC BY
    4.0)
  file_id: '22163'
  file_name: crystals-11-00542.pdf
  file_size: 3042827
  relation: main_file
  title: 'Electron polarons in lithium niobate: Charge localization, lattice deformation,
    and optical response'
file_date_updated: 2021-05-13T16:51:41Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: '        11'
isi: '1'
language:
- iso: eng
oa: '1'
page: '542'
project:
- _id: '53'
  name: TRR 142
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '69'
  name: TRR 142 - Subproject B4
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Crystals
publication_identifier:
  eissn:
  - 2073-4352
publication_status: published
publisher: MDPI
quality_controlled: '1'
status: public
title: 'Electron polarons in lithium niobate: Charge localization, lattice deformation,
  and optical response'
type: journal_article
user_id: '171'
volume: 11
year: '2021'
...
---
_id: '34222'
abstract:
- lang: eng
  text: Driven by the CO2-emission law by the European government and the increasing
    costs for raw materials as well as energy, the automotive industry is increasingly
    using multi-material constructions. This leads to a continuous increase in the
    use of mechanical joining techniques and especially the self-piercing riveting
    is of particular importance. The reason for this is the wide range of joining
    possibilities as well as the high load-bearing capacities of the joints. To be
    able to react to changing boundary conditions, like material thickness or strength
    variation of the sheets, research work is crucial with regard to the increase
    of versatility. In this paper, a numerical study of the influences on the selfpiercing
    riveting process is presented. For this purpose, the influence of different process
    parameters such as rivet length and die depth on various quality-relevant characteristics
    were investigated. With the help of the design of experiment, significant influences
    were determined and interactions between the individual parameters are shown.
author:
- first_name: Fabian
  full_name: Kappe, Fabian
  id: '66459'
  last_name: Kappe
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Vadim
  full_name: Sartisson, Vadim
  last_name: Sartisson
- 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, Bielak CR, Sartisson V, Bobbert M, Meschut G. Influence of rivet
    length on joint formation on self-piercing riveting process considering further
    process parameters. In: <i>ESAFORM 2021</i>. University of Liege; 2021. doi:<a
    href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>'
  apa: Kappe, F., Bielak, C. R., Sartisson, V., Bobbert, M., &#38; Meschut, G. (2021).
    Influence of rivet length on joint formation on self-piercing riveting process
    considering further process parameters. <i>ESAFORM 2021</i>. <a href="https://doi.org/10.25518/esaform21.4277">https://doi.org/10.25518/esaform21.4277</a>
  bibtex: '@inproceedings{Kappe_Bielak_Sartisson_Bobbert_Meschut_2021, title={Influence
    of rivet length on joint formation on self-piercing riveting process considering
    further process parameters}, DOI={<a href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>},
    booktitle={ESAFORM 2021}, publisher={University of Liege}, author={Kappe, Fabian
    and Bielak, Christian Roman and Sartisson, Vadim and Bobbert, Mathias and Meschut,
    Gerson}, year={2021} }'
  chicago: Kappe, Fabian, Christian Roman Bielak, Vadim Sartisson, Mathias Bobbert,
    and Gerson Meschut. “Influence of rivet length on joint formation on self-piercing
    riveting process considering further process parameters.” In <i>ESAFORM 2021</i>.
    University of Liege, 2021. <a href="https://doi.org/10.25518/esaform21.4277">https://doi.org/10.25518/esaform21.4277</a>.
  ieee: 'F. Kappe, C. R. Bielak, V. Sartisson, M. Bobbert, and G. Meschut, “Influence
    of rivet length on joint formation on self-piercing riveting process considering
    further process parameters,” 2021, doi: <a href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>.'
  mla: Kappe, Fabian, et al. “Influence of rivet length on joint formation on self-piercing
    riveting process considering further process parameters.” <i>ESAFORM 2021</i>,
    University of Liege, 2021, doi:<a href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>.
  short: 'F. Kappe, C.R. Bielak, V. Sartisson, M. Bobbert, G. Meschut, in: ESAFORM
    2021, University of Liege, 2021.'
date_created: 2022-12-05T21:45:13Z
date_updated: 2023-04-27T08:52:48Z
department:
- _id: '630'
- _id: '157'
doi: 10.25518/esaform21.4277
language:
- iso: fre
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'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
  name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: ESAFORM 2021
publication_status: published
publisher: University of Liege
quality_controlled: '1'
status: public
title: Influence of rivet length on joint formation on self-piercing riveting process
  considering further process parameters
type: conference
user_id: '66459'
year: '2021'
...
---
_id: '22310'
author:
- first_name: Sergej
  full_name: Neufeld, Sergej
  id: '23261'
  last_name: Neufeld
- first_name: Adriana
  full_name: Bocchini, Adriana
  id: '58349'
  last_name: Bocchini
  orcid: https://orcid.org/0000-0002-2134-3075
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Neufeld S, Bocchini A, Schmidt WG. Potassium titanyl phosphate Z- and Y-cut
    surfaces from density-functional theory. <i>Physical Review Materials</i>. Published
    online 2021. doi:<a href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>
  apa: Neufeld, S., Bocchini, A., &#38; Schmidt, W. G. (2021). Potassium titanyl phosphate
    Z- and Y-cut surfaces from density-functional theory. <i>Physical Review Materials</i>.
    <a href="https://doi.org/10.1103/physrevmaterials.5.064407">https://doi.org/10.1103/physrevmaterials.5.064407</a>
  bibtex: '@article{Neufeld_Bocchini_Schmidt_2021, title={Potassium titanyl phosphate
    Z- and Y-cut surfaces from density-functional theory}, DOI={<a href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>},
    journal={Physical Review Materials}, author={Neufeld, Sergej and Bocchini, Adriana
    and Schmidt, Wolf Gero}, year={2021} }'
  chicago: Neufeld, Sergej, Adriana Bocchini, and Wolf Gero Schmidt. “Potassium Titanyl
    Phosphate Z- and Y-Cut Surfaces from Density-Functional Theory.” <i>Physical Review
    Materials</i>, 2021. <a href="https://doi.org/10.1103/physrevmaterials.5.064407">https://doi.org/10.1103/physrevmaterials.5.064407</a>.
  ieee: 'S. Neufeld, A. Bocchini, and W. G. Schmidt, “Potassium titanyl phosphate
    Z- and Y-cut surfaces from density-functional theory,” <i>Physical Review Materials</i>,
    2021, doi: <a href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>.'
  mla: Neufeld, Sergej, et al. “Potassium Titanyl Phosphate Z- and Y-Cut Surfaces
    from Density-Functional Theory.” <i>Physical Review Materials</i>, 2021, doi:<a
    href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>.
  short: S. Neufeld, A. Bocchini, W.G. Schmidt, Physical Review Materials (2021).
date_created: 2021-06-14T17:34:35Z
date_updated: 2023-04-20T14:08:07Z
department:
- _id: '15'
- _id: '295'
- _id: '170'
- _id: '429'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevmaterials.5.064407
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '55'
  name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '69'
  name: 'TRR 142 - B4: TRR 142 - Subproject B4'
publication: Physical Review Materials
publication_identifier:
  issn:
  - 2475-9953
publication_status: published
status: public
title: Potassium titanyl phosphate Z- and Y-cut surfaces from density-functional theory
type: journal_article
user_id: '16199'
year: '2021'
...
---
_id: '22960'
abstract:
- lang: eng
  text: We perform a theoretical analysis of the structural and electronic properties
    of sodium potassium niobate K1-xNaxNbO3 in the orthorhombic room-temperature phase,
    based on density-functional theory in combination with the supercell approach.
    Our results for x=0 and x=0.5 are in very good agreement with experimental measurements
    and establish that the lattice parameters decrease linearly with increasing Na
    contents, disproving earlier theoretical studies based on the virtual-crystal
    approximation that claimed a highly nonlinear behavior with a significant structural
    distortion and volume reduction in K0.5Na0.5NbO3 compared to both end members
    of the solid solution. Furthermore, we find that the electronic band gap varies
    very little between x=0 and x=0.5, reflecting the small changes in the lattice
    parameters.
article_number: '169'
article_type: original
author:
- first_name: Nithin
  full_name: Bidaraguppe Ramesh, Nithin
  id: '70064'
  last_name: Bidaraguppe Ramesh
- first_name: Falko
  full_name: Schmidt, Falko
  id: '35251'
  last_name: Schmidt
  orcid: 0000-0002-5071-5528
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
citation:
  ama: Bidaraguppe Ramesh N, Schmidt F, Schindlmayr A. Lattice parameters and electronic
    band gap of orthorhombic potassium sodium niobate K0.5Na0.5NbO3 from density-functional
    theory. <i>The European Physical Journal B</i>. 2021;94(8). doi:<a href="https://doi.org/10.1140/epjb/s10051-021-00179-8">10.1140/epjb/s10051-021-00179-8</a>
  apa: Bidaraguppe Ramesh, N., Schmidt, F., &#38; Schindlmayr, A. (2021). Lattice
    parameters and electronic band gap of orthorhombic potassium sodium niobate K0.5Na0.5NbO3
    from density-functional theory. <i>The European Physical Journal B</i>, <i>94</i>(8),
    Article 169. <a href="https://doi.org/10.1140/epjb/s10051-021-00179-8">https://doi.org/10.1140/epjb/s10051-021-00179-8</a>
  bibtex: '@article{Bidaraguppe Ramesh_Schmidt_Schindlmayr_2021, title={Lattice parameters
    and electronic band gap of orthorhombic potassium sodium niobate K0.5Na0.5NbO3
    from density-functional theory}, volume={94}, DOI={<a href="https://doi.org/10.1140/epjb/s10051-021-00179-8">10.1140/epjb/s10051-021-00179-8</a>},
    number={8169}, journal={The European Physical Journal B}, publisher={EDP Sciences,
    Società Italiana di Fisica and Springer}, author={Bidaraguppe Ramesh, Nithin and
    Schmidt, Falko and Schindlmayr, Arno}, year={2021} }'
  chicago: Bidaraguppe Ramesh, Nithin, Falko Schmidt, and Arno Schindlmayr. “Lattice
    Parameters and Electronic Band Gap of Orthorhombic Potassium Sodium Niobate K0.5Na0.5NbO3
    from Density-Functional Theory.” <i>The European Physical Journal B</i> 94, no.
    8 (2021). <a href="https://doi.org/10.1140/epjb/s10051-021-00179-8">https://doi.org/10.1140/epjb/s10051-021-00179-8</a>.
  ieee: 'N. Bidaraguppe Ramesh, F. Schmidt, and A. Schindlmayr, “Lattice parameters
    and electronic band gap of orthorhombic potassium sodium niobate K0.5Na0.5NbO3
    from density-functional theory,” <i>The European Physical Journal B</i>, vol.
    94, no. 8, Art. no. 169, 2021, doi: <a href="https://doi.org/10.1140/epjb/s10051-021-00179-8">10.1140/epjb/s10051-021-00179-8</a>.'
  mla: Bidaraguppe Ramesh, Nithin, et al. “Lattice Parameters and Electronic Band
    Gap of Orthorhombic Potassium Sodium Niobate K0.5Na0.5NbO3 from Density-Functional
    Theory.” <i>The European Physical Journal B</i>, vol. 94, no. 8, 169, EDP Sciences,
    Società Italiana di Fisica and Springer, 2021, doi:<a href="https://doi.org/10.1140/epjb/s10051-021-00179-8">10.1140/epjb/s10051-021-00179-8</a>.
  short: N. Bidaraguppe Ramesh, F. Schmidt, A. Schindlmayr, The European Physical
    Journal B 94 (2021).
date_created: 2021-08-08T21:21:42Z
date_updated: 2023-04-20T14:56:25Z
ddc:
- '530'
department:
- _id: '296'
- _id: '230'
- _id: '429'
- _id: '15'
- _id: '170'
- _id: '35'
doi: 10.1140/epjb/s10051-021-00179-8
external_id:
  isi:
  - '000687163200002'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2021-09-02T08:05:06Z
  date_updated: 2021-09-02T08:05:06Z
  description: Creative Commons Attribution 4.0 International Public License (CC BY
    4.0)
  file_id: '23679'
  file_name: BidaraguppeRamesh2021_Article_LatticeParametersAndElectronic.pdf
  file_size: 850389
  relation: main_file
  title: Lattice parameters and electronic bandgap of orthorhombic potassium sodium
    niobate K0.5Na0.5NbO3 from density-functional theory
file_date_updated: 2021-09-02T08:05:06Z
has_accepted_license: '1'
intvolume: '        94'
isi: '1'
issue: '8'
language:
- iso: eng
oa: '1'
project:
- _id: '53'
  name: TRR 142
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '69'
  name: TRR 142 - Subproject B4
publication: The European Physical Journal B
publication_identifier:
  eissn:
  - 1434-6036
  issn:
  - 1434-6028
publication_status: published
publisher: EDP Sciences, Società Italiana di Fisica and Springer
quality_controlled: '1'
status: public
title: Lattice parameters and electronic band gap of orthorhombic potassium sodium
  niobate K0.5Na0.5NbO3 from density-functional theory
type: journal_article
user_id: '16199'
volume: 94
year: '2021'
...
---
_id: '23816'
abstract:
- lang: eng
  text: Employing the ultrafast control of electronic states of a semiconductor quantum
    dot in a cavity, we introduce an approach to achieve on-demand emission of single
    photons with almost perfect indistinguishability and photon pairs with near ideal
    entanglement. Our scheme is based on optical excitation off resonant to a cavity
    mode followed by ultrafast control of the electronic states using the time-dependent
    quantum-confined Stark effect, which then allows for cavity-resonant emission.
    Our theoretical analysis considers cavity-loss mechanisms, the Stark effect, and
    phonon-induced dephasing, allowing realistic predictions for finite temperatures.
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Dirk Florian
  full_name: Heinze, Dirk Florian
  id: '10904'
  last_name: Heinze
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Heinze DF, Förstner J, Jöns K, Schumacher S. Ultrafast electric control
    of cavity mediated single-photon and photon-pair generation with semiconductor
    quantum dots. <i>Physical Review B</i>. 2021;104:085308. doi:<a href="https://doi.org/10.1103/physrevb.104.085308">10.1103/physrevb.104.085308</a>
  apa: Bauch, D., Heinze, D. F., Förstner, J., Jöns, K., &#38; Schumacher, S. (2021).
    Ultrafast electric control of cavity mediated single-photon and photon-pair generation
    with semiconductor quantum dots. <i>Physical Review B</i>, <i>104</i>, 085308.
    <a href="https://doi.org/10.1103/physrevb.104.085308">https://doi.org/10.1103/physrevb.104.085308</a>
  bibtex: '@article{Bauch_Heinze_Förstner_Jöns_Schumacher_2021, title={Ultrafast electric
    control of cavity mediated single-photon and photon-pair generation with semiconductor
    quantum dots}, volume={104}, DOI={<a href="https://doi.org/10.1103/physrevb.104.085308">10.1103/physrevb.104.085308</a>},
    journal={Physical Review B}, author={Bauch, David and Heinze, Dirk Florian and
    Förstner, Jens and Jöns, Klaus and Schumacher, Stefan}, year={2021}, pages={085308}
    }'
  chicago: 'Bauch, David, Dirk Florian Heinze, Jens Förstner, Klaus Jöns, and Stefan
    Schumacher. “Ultrafast Electric Control of Cavity Mediated Single-Photon and Photon-Pair
    Generation with Semiconductor Quantum Dots.” <i>Physical Review B</i> 104 (2021):
    085308. <a href="https://doi.org/10.1103/physrevb.104.085308">https://doi.org/10.1103/physrevb.104.085308</a>.'
  ieee: 'D. Bauch, D. F. Heinze, J. Förstner, K. Jöns, and S. Schumacher, “Ultrafast
    electric control of cavity mediated single-photon and photon-pair generation with
    semiconductor quantum dots,” <i>Physical Review B</i>, vol. 104, p. 085308, 2021,
    doi: <a href="https://doi.org/10.1103/physrevb.104.085308">10.1103/physrevb.104.085308</a>.'
  mla: Bauch, David, et al. “Ultrafast Electric Control of Cavity Mediated Single-Photon
    and Photon-Pair Generation with Semiconductor Quantum Dots.” <i>Physical Review
    B</i>, vol. 104, 2021, p. 085308, doi:<a href="https://doi.org/10.1103/physrevb.104.085308">10.1103/physrevb.104.085308</a>.
  short: D. Bauch, D.F. Heinze, J. Förstner, K. Jöns, S. Schumacher, Physical Review
    B 104 (2021) 085308.
date_created: 2021-09-06T18:02:44Z
date_updated: 2023-04-20T15:33:52Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/physrevb.104.085308
file:
- access_level: open_access
  content_type: application/pdf
  creator: fossie
  date_created: 2021-09-07T06:32:25Z
  date_updated: 2021-09-07T07:43:47Z
  file_id: '23818'
  file_name: 2021-08 Bauch PhysRevB.104.085308.pdf
  file_size: 887439
  relation: main_file
file_date_updated: 2021-09-07T07:43:47Z
has_accepted_license: '1'
intvolume: '       104'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
page: '085308'
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '60'
  name: TRR 142 - Subproject A3
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
status: public
title: Ultrafast electric control of cavity mediated single-photon and photon-pair
  generation with semiconductor quantum dots
type: journal_article
user_id: '16199'
volume: 104
year: '2021'
...
---
_id: '23418'
abstract:
- lang: eng
  text: Density-functional theory within a Berry-phase formulation of the dynamical
    polarization is used to determine the second-order susceptibility χ(2) of lithium
    niobate (LiNbO3). Defect trapped polarons and bipolarons are found to strongly
    enhance the nonlinear susceptibility of the material, in particular if localized
    at NbV–VLi defect pairs. This is essentially a consequence of the polaronic excitation
    resulting in relaxation-induced gap states. The occupation of these levels leads
    to strongly enhanced χ(2) coefficients and allows for the spatial and transient
    modification of the second-harmonic generation of macroscopic samples.
article_type: original
author:
- first_name: Agnieszka L.
  full_name: Kozub, Agnieszka L.
  id: '77566'
  last_name: Kozub
  orcid: https://orcid.org/0000-0001-6584-0201
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Kozub AL, Schindlmayr A, Gerstmann U, Schmidt WG. Polaronic enhancement of
    second-harmonic generation in lithium niobate. <i>Physical Review B</i>. 2021;104:174110.
    doi:<a href="https://doi.org/10.1103/PhysRevB.104.174110">10.1103/PhysRevB.104.174110</a>
  apa: Kozub, A. L., Schindlmayr, A., Gerstmann, U., &#38; Schmidt, W. G. (2021).
    Polaronic enhancement of second-harmonic generation in lithium niobate. <i>Physical
    Review B</i>, <i>104</i>, 174110. <a href="https://doi.org/10.1103/PhysRevB.104.174110">https://doi.org/10.1103/PhysRevB.104.174110</a>
  bibtex: '@article{Kozub_Schindlmayr_Gerstmann_Schmidt_2021, title={Polaronic enhancement
    of second-harmonic generation in lithium niobate}, volume={104}, DOI={<a href="https://doi.org/10.1103/PhysRevB.104.174110">10.1103/PhysRevB.104.174110</a>},
    journal={Physical Review B}, publisher={American Physical Society}, author={Kozub,
    Agnieszka L. and Schindlmayr, Arno and Gerstmann, Uwe and Schmidt, Wolf Gero},
    year={2021}, pages={174110} }'
  chicago: 'Kozub, Agnieszka L., Arno Schindlmayr, Uwe Gerstmann, and Wolf Gero Schmidt.
    “Polaronic Enhancement of Second-Harmonic Generation in Lithium Niobate.” <i>Physical
    Review B</i> 104 (2021): 174110. <a href="https://doi.org/10.1103/PhysRevB.104.174110">https://doi.org/10.1103/PhysRevB.104.174110</a>.'
  ieee: 'A. L. Kozub, A. Schindlmayr, U. Gerstmann, and W. G. Schmidt, “Polaronic
    enhancement of second-harmonic generation in lithium niobate,” <i>Physical Review
    B</i>, vol. 104, p. 174110, 2021, doi: <a href="https://doi.org/10.1103/PhysRevB.104.174110">10.1103/PhysRevB.104.174110</a>.'
  mla: Kozub, Agnieszka L., et al. “Polaronic Enhancement of Second-Harmonic Generation
    in Lithium Niobate.” <i>Physical Review B</i>, vol. 104, American Physical Society,
    2021, p. 174110, doi:<a href="https://doi.org/10.1103/PhysRevB.104.174110">10.1103/PhysRevB.104.174110</a>.
  short: A.L. Kozub, A. Schindlmayr, U. Gerstmann, W.G. Schmidt, Physical Review B
    104 (2021) 174110.
date_created: 2021-08-16T19:09:46Z
date_updated: 2023-04-21T11:15:30Z
ddc:
- '530'
department:
- _id: '296'
- _id: '230'
- _id: '429'
- _id: '295'
- _id: '15'
- _id: '170'
- _id: '790'
doi: 10.1103/PhysRevB.104.174110
external_id:
  arxiv:
  - '2106.01145'
  isi:
  - '000720931400007'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2021-11-18T20:49:19Z
  date_updated: 2021-11-18T20:49:19Z
  description: © 2021 American Physical Society
  file_id: '27577'
  file_name: PhysRevB.104.174110.pdf
  file_size: 804012
  relation: main_file
  title: Polaronic enhancement of second-harmonic generation in lithium niobate
file_date_updated: 2021-11-18T20:49:19Z
has_accepted_license: '1'
intvolume: '       104'
isi: '1'
language:
- iso: eng
oa: '1'
page: '174110'
project:
- _id: '53'
  name: TRR 142
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '69'
  name: TRR 142 - Subproject B4
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
  eissn:
  - 2469-9969
  issn:
  - 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Polaronic enhancement of second-harmonic generation in lithium niobate
type: journal_article
user_id: '171'
volume: 104
year: '2021'
...
---
_id: '21547'
author:
- first_name: Matvei
  full_name: Riabinin, Matvei
  last_name: Riabinin
- first_name: Polina
  full_name: Sharapova, Polina
  id: '60286'
  last_name: Sharapova
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Riabinin M, Sharapova P, Bartley T, Meier T. Generating two-mode squeezing
    with multimode measurement-induced nonlinearity. <i>Journal of Physics Communications</i>.
    2021;5(4). doi:<a href="https://doi.org/10.1088/2399-6528/abeec2">10.1088/2399-6528/abeec2</a>
  apa: Riabinin, M., Sharapova, P., Bartley, T., &#38; Meier, T. (2021). Generating
    two-mode squeezing with multimode measurement-induced nonlinearity. <i>Journal
    of Physics Communications</i>, <i>5</i>(4). <a href="https://doi.org/10.1088/2399-6528/abeec2">https://doi.org/10.1088/2399-6528/abeec2</a>
  bibtex: '@article{Riabinin_Sharapova_Bartley_Meier_2021, title={Generating two-mode
    squeezing with multimode measurement-induced nonlinearity}, volume={5}, DOI={<a
    href="https://doi.org/10.1088/2399-6528/abeec2">10.1088/2399-6528/abeec2</a>},
    number={4}, journal={Journal of Physics Communications}, author={Riabinin, Matvei
    and Sharapova, Polina and Bartley, Tim and Meier, Torsten}, year={2021} }'
  chicago: Riabinin, Matvei, Polina Sharapova, Tim Bartley, and Torsten Meier. “Generating
    Two-Mode Squeezing with Multimode Measurement-Induced Nonlinearity.” <i>Journal
    of Physics Communications</i> 5, no. 4 (2021). <a href="https://doi.org/10.1088/2399-6528/abeec2">https://doi.org/10.1088/2399-6528/abeec2</a>.
  ieee: 'M. Riabinin, P. Sharapova, T. Bartley, and T. Meier, “Generating two-mode
    squeezing with multimode measurement-induced nonlinearity,” <i>Journal of Physics
    Communications</i>, vol. 5, no. 4, 2021, doi: <a href="https://doi.org/10.1088/2399-6528/abeec2">10.1088/2399-6528/abeec2</a>.'
  mla: Riabinin, Matvei, et al. “Generating Two-Mode Squeezing with Multimode Measurement-Induced
    Nonlinearity.” <i>Journal of Physics Communications</i>, vol. 5, no. 4, 2021,
    doi:<a href="https://doi.org/10.1088/2399-6528/abeec2">10.1088/2399-6528/abeec2</a>.
  short: M. Riabinin, P. Sharapova, T. Bartley, T. Meier, Journal of Physics Communications
    5 (2021).
date_created: 2021-03-22T08:49:03Z
date_updated: 2023-04-21T11:15:28Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '429'
- _id: '482'
- _id: '35'
doi: 10.1088/2399-6528/abeec2
intvolume: '         5'
issue: '4'
language:
- iso: eng
project:
- _id: '53'
  name: TRR 142
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '72'
  name: TRR 142 - Subproject C2
- _id: '76'
  name: TRR 142 - Subproject C6
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Journal of Physics Communications
publication_identifier:
  issn:
  - 2399-6528
publication_status: published
status: public
title: Generating two-mode squeezing with multimode measurement-induced nonlinearity
type: journal_article
user_id: '16199'
volume: 5
year: '2021'
...
---
_id: '22798'
abstract:
- lang: eng
  text: The predictive quality of numerical simulations for mechanical joining processes
    depends on the implemented material model, especially regarding the plasticity
    of the joining parts. Therefore, experimental material characterization processes
    are conducted to determine the material properties of sheet metal and generate
    flow curves. In this regard, there are a number of procedures which are accompanied
    by varying experimental efforts. This paper presents various methods of determining
    flow curves for HCT590X as well as EN AW-6014, including varying specimen geometries
    and diverse hardening laws for extrapolation procedures. The flow curves thus
    generated are compared considering the variety of plastic strains occurring in
    mechanical joining processes. The material data generated are implemented in simulation
    models for the joining technologies, clinching and self-piercing riveting. The
    influence of the varied methods on the predictive accuracy of the simulation model
    is analysed. The evaluation of the differing flow curves is achieved by comparing
    the geometric formation of the joints and the required joining forces of the processes
    with experimentally investigated joints.
author:
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- 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: Böhnke M, Kappe F, Bobbert M, Meschut G. Influence of various procedures for
    the determination of flow curves on the predictive accuracy of numerical simulations
    for mechanical joining processes. <i>Materials Testing</i>. 2021;63(6):493-500.
    doi:<a href="https://doi.org/10.1515/mt-2020-0082">10.1515/mt-2020-0082</a>
  apa: Böhnke, M., Kappe, F., Bobbert, M., &#38; Meschut, G. (2021). Influence of
    various procedures for the determination of flow curves on the predictive accuracy
    of numerical simulations for mechanical joining processes. <i>Materials Testing</i>,
    <i>63</i>(6), 493–500. <a href="https://doi.org/10.1515/mt-2020-0082">https://doi.org/10.1515/mt-2020-0082</a>
  bibtex: '@article{Böhnke_Kappe_Bobbert_Meschut_2021, title={Influence of various
    procedures for the determination of flow curves on the predictive accuracy of
    numerical simulations for mechanical joining processes}, volume={63}, DOI={<a
    href="https://doi.org/10.1515/mt-2020-0082">10.1515/mt-2020-0082</a>}, number={6},
    journal={Materials Testing}, publisher={De Gruyter}, author={Böhnke, Max and Kappe,
    Fabian and Bobbert, Mathias and Meschut, Gerson}, year={2021}, pages={493–500}
    }'
  chicago: 'Böhnke, Max, Fabian Kappe, Mathias Bobbert, and Gerson Meschut. “Influence
    of Various Procedures for the Determination of Flow Curves on the Predictive Accuracy
    of Numerical Simulations for Mechanical Joining Processes.” <i>Materials Testing</i>
    63, no. 6 (2021): 493–500. <a href="https://doi.org/10.1515/mt-2020-0082">https://doi.org/10.1515/mt-2020-0082</a>.'
  ieee: 'M. Böhnke, F. Kappe, M. Bobbert, and G. Meschut, “Influence of various procedures
    for the determination of flow curves on the predictive accuracy of numerical simulations
    for mechanical joining processes,” <i>Materials Testing</i>, vol. 63, no. 6, pp.
    493–500, 2021, doi: <a href="https://doi.org/10.1515/mt-2020-0082">10.1515/mt-2020-0082</a>.'
  mla: Böhnke, Max, et al. “Influence of Various Procedures for the Determination
    of Flow Curves on the Predictive Accuracy of Numerical Simulations for Mechanical
    Joining Processes.” <i>Materials Testing</i>, vol. 63, no. 6, De Gruyter, 2021,
    pp. 493–500, doi:<a href="https://doi.org/10.1515/mt-2020-0082">10.1515/mt-2020-0082</a>.
  short: M. Böhnke, F. Kappe, M. Bobbert, G. Meschut, Materials Testing 63 (2021)
    493–500.
date_created: 2021-07-22T11:27:37Z
date_updated: 2023-04-27T08:53:22Z
department:
- _id: '157'
- _id: '630'
doi: 10.1515/mt-2020-0082
intvolume: '        63'
issue: '6'
language:
- iso: eng
page: 493-500
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '146'
  name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Materials Testing
publication_identifier:
  issn:
  - 2195-8572
  - 0025-5300
publication_status: published
publisher: De Gruyter
quality_controlled: '1'
status: public
title: Influence of various procedures for the determination of flow curves on the
  predictive accuracy of numerical simulations for mechanical joining processes
type: journal_article
user_id: '66459'
volume: 63
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: '30200'
author:
- first_name: Simon
  full_name: Wituschek, Simon
  last_name: Wituschek
- first_name: Fabian
  full_name: Kappe, Fabian
  id: '66459'
  last_name: Kappe
- first_name: Michael
  full_name: Lechner, Michael
  last_name: Lechner
citation:
  ama: Wituschek S, Kappe F, Lechner M. Investigation of the influence of varying
    tumbling strategies on a tumbling self-piercing riveting process. <i>Production
    Engineering</i>. Published online 2021. doi:<a href="https://doi.org/10.1007/s11740-021-01099-3">10.1007/s11740-021-01099-3</a>
  apa: Wituschek, S., Kappe, F., &#38; Lechner, M. (2021). Investigation of the influence
    of varying tumbling strategies on a tumbling self-piercing riveting process. <i>Production
    Engineering</i>. <a href="https://doi.org/10.1007/s11740-021-01099-3">https://doi.org/10.1007/s11740-021-01099-3</a>
  bibtex: '@article{Wituschek_Kappe_Lechner_2021, title={Investigation of the influence
    of varying tumbling strategies on a tumbling self-piercing riveting process},
    DOI={<a href="https://doi.org/10.1007/s11740-021-01099-3">10.1007/s11740-021-01099-3</a>},
    journal={Production Engineering}, author={Wituschek, Simon and Kappe, Fabian and
    Lechner, Michael}, year={2021} }'
  chicago: Wituschek, Simon, Fabian Kappe, and Michael Lechner. “Investigation of
    the Influence of Varying Tumbling Strategies on a Tumbling Self-Piercing Riveting
    Process.” <i>Production Engineering</i>, 2021. <a href="https://doi.org/10.1007/s11740-021-01099-3">https://doi.org/10.1007/s11740-021-01099-3</a>.
  ieee: 'S. Wituschek, F. Kappe, and M. Lechner, “Investigation of the influence of
    varying tumbling strategies on a tumbling self-piercing riveting process,” <i>Production
    Engineering</i>, 2021, doi: <a href="https://doi.org/10.1007/s11740-021-01099-3">10.1007/s11740-021-01099-3</a>.'
  mla: Wituschek, Simon, et al. “Investigation of the Influence of Varying Tumbling
    Strategies on a Tumbling Self-Piercing Riveting Process.” <i>Production Engineering</i>,
    2021, doi:<a href="https://doi.org/10.1007/s11740-021-01099-3">10.1007/s11740-021-01099-3</a>.
  short: S. Wituschek, F. Kappe, M. Lechner, Production Engineering (2021).
date_created: 2022-03-03T10:08:47Z
date_updated: 2023-04-27T08:54:09Z
department:
- _id: '630'
doi: 10.1007/s11740-021-01099-3
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: '146'
  name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Production Engineering
quality_controlled: '1'
status: public
title: Investigation of the influence of varying tumbling strategies on a tumbling
  self-piercing riveting process
type: journal_article
user_id: '66459'
year: '2021'
...
---
_id: '24541'
abstract:
- lang: eng
  text: <jats:p>The mechanical properties of joined structures are determined considerably
    by the chosen joining technology. With the aim of providing a method that enables
    a faster and more profound decision-making in the spatial distribution of joining
    points during product development, a new method for the load path analysis of
    joining points is presented. For an exemplary car body, the load type in the joining
    elements, i.e. pure tensile, shear and combined tensile-shear loads, is determined
    using finite element analysis (FEA). Based on the evaluated loads, the resulting
    load paths in selected joining points are analyzed using a 2D FE-model of a clinching
    point. State of the art methods for load path analysis are dependent on the selected
    coordinate system or the existing stress state. Thus, a general statement about
    the load transmission path is not possible at this time. Here, a novel method
    for the analysis of load paths is used, which is independent of the alignment
    of the analyzed geometry. The basic assumption of the new load path analysis method
    was confirmed by using a simple specimen with a square hole in different orientations.
    The results presented here show a possibility to display the load transmission
    path invariantly. In further steps, the method will be extended for 3D analysis
    and the investigation of more complex assemblies. The primary goal of this methodical
    approach is an even load distribution over the joining elements and the component.
    This will provide a basis for future design approaches aimed at reducing the number
    of joining elements in joined structures.</jats:p>
author:
- first_name: Christian
  full_name: Steinfelder, Christian
  last_name: Steinfelder
- first_name: Sven
  full_name: Martin, Sven
  id: '38177'
  last_name: Martin
- first_name: Alexander
  full_name: Brosius, Alexander
  last_name: Brosius
- first_name: Thomas
  full_name: Tröster, Thomas
  last_name: Tröster
citation:
  ama: Steinfelder C, Martin S, Brosius A, Tröster T. Load Path Transmission in Joining
    Elements. <i>Key Engineering Materials</i>. Published online 2021:73-80. doi:<a
    href="https://doi.org/10.4028/www.scientific.net/kem.883.73">10.4028/www.scientific.net/kem.883.73</a>
  apa: Steinfelder, C., Martin, S., Brosius, A., &#38; Tröster, T. (2021). Load Path
    Transmission in Joining Elements. <i>Key Engineering Materials</i>, 73–80. <a
    href="https://doi.org/10.4028/www.scientific.net/kem.883.73">https://doi.org/10.4028/www.scientific.net/kem.883.73</a>
  bibtex: '@article{Steinfelder_Martin_Brosius_Tröster_2021, title={Load Path Transmission
    in Joining Elements}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.73">10.4028/www.scientific.net/kem.883.73</a>},
    journal={Key Engineering Materials}, author={Steinfelder, Christian and Martin,
    Sven and Brosius, Alexander and Tröster, Thomas}, year={2021}, pages={73–80} }'
  chicago: Steinfelder, Christian, Sven Martin, Alexander Brosius, and Thomas Tröster.
    “Load Path Transmission in Joining Elements.” <i>Key Engineering Materials</i>,
    2021, 73–80. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.73">https://doi.org/10.4028/www.scientific.net/kem.883.73</a>.
  ieee: 'C. Steinfelder, S. Martin, A. Brosius, and T. Tröster, “Load Path Transmission
    in Joining Elements,” <i>Key Engineering Materials</i>, pp. 73–80, 2021, doi:
    <a href="https://doi.org/10.4028/www.scientific.net/kem.883.73">10.4028/www.scientific.net/kem.883.73</a>.'
  mla: Steinfelder, Christian, et al. “Load Path Transmission in Joining Elements.”
    <i>Key Engineering Materials</i>, 2021, pp. 73–80, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.73">10.4028/www.scientific.net/kem.883.73</a>.
  short: C. Steinfelder, S. Martin, A. Brosius, T. Tröster, Key Engineering Materials
    (2021) 73–80.
date_created: 2021-09-16T08:23:00Z
date_updated: 2023-04-28T11:57:49Z
department:
- _id: '321'
- _id: '149'
- _id: '630'
doi: 10.4028/www.scientific.net/kem.883.73
language:
- iso: eng
page: 73-80
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '132'
  name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
  name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: Key Engineering Materials
publication_identifier:
  issn:
  - 1662-9795
publication_status: published
quality_controlled: '1'
status: public
title: Load Path Transmission in Joining Elements
type: journal_article
user_id: '38177'
year: '2021'
...
---
_id: '24548'
author:
- first_name: Sven
  full_name: Martin, Sven
  id: '38177'
  last_name: Martin
- first_name: Thomas
  full_name: Tröster, Thomas
  last_name: Tröster
citation:
  ama: Martin S, Tröster T. Joint point loadings in car bodies – the influence of
    manufacturing tolerances and scatter in material properties. <i>ESAFORM 2021</i>.
    Published online 2021. doi:<a href="https://doi.org/10.25518/esaform21.3801">10.25518/esaform21.3801</a>
  apa: Martin, S., &#38; Tröster, T. (2021). Joint point loadings in car bodies –
    the influence of manufacturing tolerances and scatter in material properties.
    <i>ESAFORM 2021</i>. <a href="https://doi.org/10.25518/esaform21.3801">https://doi.org/10.25518/esaform21.3801</a>
  bibtex: '@article{Martin_Tröster_2021, title={Joint point loadings in car bodies
    – the influence of manufacturing tolerances and scatter in material properties},
    DOI={<a href="https://doi.org/10.25518/esaform21.3801">10.25518/esaform21.3801</a>},
    journal={ESAFORM 2021}, author={Martin, Sven and Tröster, Thomas}, year={2021}
    }'
  chicago: Martin, Sven, and Thomas Tröster. “Joint point loadings in car bodies –
    the influence of manufacturing tolerances and scatter in material properties.”
    <i>ESAFORM 2021</i>, 2021. <a href="https://doi.org/10.25518/esaform21.3801">https://doi.org/10.25518/esaform21.3801</a>.
  ieee: 'S. Martin and T. Tröster, “Joint point loadings in car bodies – the influence
    of manufacturing tolerances and scatter in material properties,” <i>ESAFORM 2021</i>,
    2021, doi: <a href="https://doi.org/10.25518/esaform21.3801">10.25518/esaform21.3801</a>.'
  mla: Martin, Sven, and Thomas Tröster. “Joint point loadings in car bodies – the
    influence of manufacturing tolerances and scatter in material properties.” <i>ESAFORM
    2021</i>, 2021, doi:<a href="https://doi.org/10.25518/esaform21.3801">10.25518/esaform21.3801</a>.
  short: S. Martin, T. Tröster, ESAFORM 2021 (2021).
date_created: 2021-09-16T08:34:41Z
date_updated: 2023-04-28T11:58:00Z
department:
- _id: '321'
- _id: '149'
- _id: '630'
doi: 10.25518/esaform21.3801
language:
- iso: fre
main_file_link:
- open_access: '1'
  url: https://popups.uliege.be/esaform21/index.php?id=3801
oa: '1'
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '132'
  name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
  name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: ESAFORM 2021
publication_status: published
quality_controlled: '1'
status: public
title: Joint point loadings in car bodies – the influence of manufacturing tolerances
  and scatter in material properties
type: journal_article
user_id: '38177'
year: '2021'
...
---
_id: '30297'
author:
- first_name: Julian
  full_name: Rozo Vasquez, Julian
  last_name: Rozo Vasquez
- first_name: Bahman
  full_name: Arian, Bahman
  id: '36287'
  last_name: Arian
- first_name: Markus
  full_name: Riepold, Markus
  last_name: Riepold
- first_name: Frank
  full_name: Walther, Frank
  last_name: Walther
- first_name: Werner
  full_name: Homberg, Werner
  id: '233'
  last_name: Homberg
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  id: '552'
  last_name: Trächtler
citation:
  ama: 'Rozo Vasquez J, Arian B, Riepold M, Walther F, Homberg W, Trächtler A. Magnetic
    Barkhausen noise analysis for microstructural effects separation during flow forming
    of metastable austenite 304L. In: <i>Proceedings of the 11th International Work­shop
    NDT in Progress</i>. ; 2021.'
  apa: Rozo Vasquez, J., Arian, B., Riepold, M., Walther, F., Homberg, W., &#38; Trächtler,
    A. (2021). Magnetic Barkhausen noise analysis for microstructural effects separation
    during flow forming of metastable austenite 304L. <i>Proceedings of the 11th International
    Work­shop NDT in Progress</i>. ENDT&#38;CM 2021 - 11th International Work­shop
    NDT in Progress, Prague.
  bibtex: '@inproceedings{Rozo Vasquez_Arian_Riepold_Walther_Homberg_Trächtler_2021,
    title={Magnetic Barkhausen noise analysis for microstructural effects separation
    during flow forming of metastable austenite 304L.}, booktitle={Proceedings of
    the 11th International Work­shop NDT in Progress}, author={Rozo Vasquez, Julian
    and Arian, Bahman and Riepold, Markus and Walther, Frank and Homberg, Werner and
    Trächtler, Ansgar}, year={2021} }'
  chicago: Rozo Vasquez, Julian, Bahman Arian, Markus Riepold, Frank Walther, Werner
    Homberg, and Ansgar Trächtler. “Magnetic Barkhausen Noise Analysis for Microstructural
    Effects Separation during Flow Forming of Metastable Austenite 304L.” In <i>Proceedings
    of the 11th International Work­shop NDT in Progress</i>, 2021.
  ieee: J. Rozo Vasquez, B. Arian, M. Riepold, F. Walther, W. Homberg, and A. Trächtler,
    “Magnetic Barkhausen noise analysis for microstructural effects separation during
    flow forming of metastable austenite 304L.,” presented at the ENDT&#38;CM 2021
    - 11th International Work­shop NDT in Progress, Prague, 2021.
  mla: Rozo Vasquez, Julian, et al. “Magnetic Barkhausen Noise Analysis for Microstructural
    Effects Separation during Flow Forming of Metastable Austenite 304L.” <i>Proceedings
    of the 11th International Work­shop NDT in Progress</i>, 2021.
  short: 'J. Rozo Vasquez, B. Arian, M. Riepold, F. Walther, W. Homberg, A. Trächtler,
    in: Proceedings of the 11th International Work­shop NDT in Progress, 2021.'
conference:
  end_date: 2021.10.07
  location: Prague
  name: ENDT&CM 2021 - 11th International Work­shop NDT in Progress
  start_date: 2021.10.04
date_created: 2022-03-15T12:07:17Z
date_updated: 2023-05-02T08:22:02Z
department:
- _id: '156'
- _id: '153'
- _id: '241'
language:
- iso: eng
publication: Proceedings of the 11th International Work­shop NDT in Progress
quality_controlled: '1'
status: public
title: Magnetic Barkhausen noise analysis for microstructural effects separation during
  flow forming of metastable austenite 304L.
type: conference
user_id: '36287'
year: '2021'
...
---
_id: '23465'
abstract:
- lang: eng
  text: One of the main objectives of production engineering is to reproducibly manufacture
    (complex) defect-free parts. To achieve this, it is necessary to employ an appropriate
    process or tool design. While this will generally prove successful, it cannot,
    however, offset stochastic defects with local variations in material properties.
    Closed-loop process control represents a promising approach for a solution in
    this context. The state of the art involves using this approach to control geometric
    parameters such as a length. So far, no research or applications have been conducted
    with closed-loop control for microstructure and product properties. In the project
    on which this paper is based, the local martensite content of parts is to be adjusted
    in a highly precise and reproducible manner. The forming process employed is a
    special, property-controlled flow-forming process. A model-based controller is
    thus to generate corresponding correction values for the tool-path geometry and
    tool-path velocity on the basis of online martensite content measurements. For
    the controller model, it is planned to use a special process or microstructure
    (correlation) model. The planned paper not only describes the experimental setup
    but also presents results of initial experimental investigations for subsequent
    use in the closed-loop control of α’-martensite content during flow-forming.
author:
- first_name: Bahman
  full_name: Arian, Bahman
  id: '36287'
  last_name: Arian
- first_name: Werner
  full_name: Homberg, Werner
  id: '233'
  last_name: Homberg
- first_name: Markus
  full_name: Riepold, Markus
  last_name: Riepold
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  id: '552'
  last_name: Trächtler
- first_name: Julian
  full_name: Rozo Vasquez, Julian
  last_name: Rozo Vasquez
- first_name: Frank
  full_name: Walther, Frank
  last_name: Walther
citation:
  ama: 'Arian B, Homberg W, Riepold M, Trächtler A, Rozo Vasquez J, Walther F. Forming
    of metastable austenitic stainless steel tubes with axially graded martensite
    content by flow-forming. In: ULiège Library; 2021.'
  apa: Arian, B., Homberg, W., Riepold, M., Trächtler, A., Rozo Vasquez, J., &#38;
    Walther, F. (2021). <i>Forming of metastable austenitic stainless steel tubes
    with axially graded martensite content by flow-forming</i>. 24th International
    Conference on Material Forming - ESAFORM 2021, Liège, Belgium.
  bibtex: '@inproceedings{Arian_Homberg_Riepold_Trächtler_Rozo Vasquez_Walther_2021,
    place={Liège}, title={Forming of metastable austenitic stainless steel tubes with
    axially graded martensite content by flow-forming}, publisher={ULiège Library},
    author={Arian, Bahman and Homberg, Werner and Riepold, Markus and Trächtler, Ansgar
    and Rozo Vasquez, Julian and Walther, Frank}, year={2021} }'
  chicago: 'Arian, Bahman, Werner Homberg, Markus Riepold, Ansgar Trächtler, Julian
    Rozo Vasquez, and Frank Walther. “Forming of Metastable Austenitic Stainless Steel
    Tubes with Axially Graded Martensite Content by Flow-Forming.” Liège: ULiège Library,
    2021.'
  ieee: B. Arian, W. Homberg, M. Riepold, A. Trächtler, J. Rozo Vasquez, and F. Walther,
    “Forming of metastable austenitic stainless steel tubes with axially graded martensite
    content by flow-forming,” presented at the 24th International Conference on Material
    Forming - ESAFORM 2021, Liège, Belgium, 2021.
  mla: Arian, Bahman, et al. <i>Forming of Metastable Austenitic Stainless Steel Tubes
    with Axially Graded Martensite Content by Flow-Forming</i>. ULiège Library, 2021.
  short: 'B. Arian, W. Homberg, M. Riepold, A. Trächtler, J. Rozo Vasquez, F. Walther,
    in: ULiège Library, Liège, 2021.'
conference:
  end_date: 2021-04-16
  location: Liège, Belgium
  name: 24th International Conference on Material Forming - ESAFORM 2021
  start_date: 2021-04-14
date_created: 2021-08-23T13:00:35Z
date_updated: 2023-05-02T08:27:48Z
department:
- _id: '156'
- _id: '153'
- _id: '241'
keyword:
- Flow-forming
- Spinning
- Process Strategy
- Martensite Content
- Property Control
- Micromagnetic Measurement
- Metastable Austenitic Stainless Steel
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://popups.uliege.be/esaform21/index.php?id=2759
oa: '1'
place: Liège
publication_identifier:
  eisbn:
  - 978-2-87019-303-7
  isbn:
  - 978-2-87019-302-0
publication_status: published
publisher: ULiège Library
quality_controlled: '1'
status: public
title: Forming of metastable austenitic stainless steel tubes with axially graded
  martensite content by flow-forming
type: conference
user_id: '36287'
year: '2021'
...
---
_id: '26082'
article_number: '100060'
author:
- first_name: Christian
  full_name: Wischer, Christian
  id: '72219'
  last_name: Wischer
- first_name: Eugen
  full_name: Wiens, Eugen
  id: '7888'
  last_name: Wiens
- first_name: Werner
  full_name: Homberg, Werner
  id: '233'
  last_name: Homberg
citation:
  ama: Wischer C, Wiens E, Homberg W. Joining with versatile joining elements formed
    by friction spinning. <i>Journal of Advanced Joining Processes</i>. 2021;3. doi:<a
    href="https://doi.org/10.1016/j.jajp.2021.100060">10.1016/j.jajp.2021.100060</a>
  apa: Wischer, C., Wiens, E., &#38; Homberg, W. (2021). Joining with versatile joining
    elements formed by friction spinning. <i>Journal of Advanced Joining Processes</i>,
    <i>3</i>, Article 100060. <a href="https://doi.org/10.1016/j.jajp.2021.100060">https://doi.org/10.1016/j.jajp.2021.100060</a>
  bibtex: '@article{Wischer_Wiens_Homberg_2021, title={Joining with versatile joining
    elements formed by friction spinning}, volume={3}, DOI={<a href="https://doi.org/10.1016/j.jajp.2021.100060">10.1016/j.jajp.2021.100060</a>},
    number={100060}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier},
    author={Wischer, Christian and Wiens, Eugen and Homberg, Werner}, year={2021}
    }'
  chicago: Wischer, Christian, Eugen Wiens, and Werner Homberg. “Joining with Versatile
    Joining Elements Formed by Friction Spinning.” <i>Journal of Advanced Joining
    Processes</i> 3 (2021). <a href="https://doi.org/10.1016/j.jajp.2021.100060">https://doi.org/10.1016/j.jajp.2021.100060</a>.
  ieee: 'C. Wischer, E. Wiens, and W. Homberg, “Joining with versatile joining elements
    formed by friction spinning,” <i>Journal of Advanced Joining Processes</i>, vol.
    3, Art. no. 100060, 2021, doi: <a href="https://doi.org/10.1016/j.jajp.2021.100060">10.1016/j.jajp.2021.100060</a>.'
  mla: Wischer, Christian, et al. “Joining with Versatile Joining Elements Formed
    by Friction Spinning.” <i>Journal of Advanced Joining Processes</i>, vol. 3, 100060,
    Elsevier, 2021, doi:<a href="https://doi.org/10.1016/j.jajp.2021.100060">10.1016/j.jajp.2021.100060</a>.
  short: C. Wischer, E. Wiens, W. Homberg, Journal of Advanced Joining Processes 3
    (2021).
date_created: 2021-10-12T11:55:27Z
date_updated: 2023-05-05T11:08:54Z
department:
- _id: '9'
- _id: '630'
- _id: '156'
doi: 10.1016/j.jajp.2021.100060
intvolume: '         3'
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: '147'
  name: 'TRR 285 – C03: TRR 285 - Subproject C03'
publication: Journal of Advanced Joining Processes
publication_identifier:
  issn:
  - 2666-3309
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Joining with versatile joining elements formed by friction spinning
type: journal_article
user_id: '7888'
volume: 3
year: '2021'
...
---
_id: '43005'
author:
- first_name: Roland
  full_name: Gawlikowicz, Roland
  last_name: Gawlikowicz
citation:
  ama: Gawlikowicz R. <i>Untersuchung von Polymer-Dry-Blends und Bewertung ihrer Verarbeitungseigenschaften
    für  den Lasersinterprozess (Studienarbeit)</i>.; 2021.
  apa: Gawlikowicz, R. (2021). <i>Untersuchung von Polymer-Dry-Blends und Bewertung
    ihrer Verarbeitungseigenschaften für  den Lasersinterprozess (Studienarbeit)</i>.
  bibtex: '@book{Gawlikowicz_2021, place={Paderborn}, title={Untersuchung von Polymer-Dry-Blends
    und Bewertung ihrer Verarbeitungseigenschaften für  den Lasersinterprozess (Studienarbeit)},
    author={Gawlikowicz, Roland}, year={2021} }'
  chicago: Gawlikowicz, Roland. <i>Untersuchung von Polymer-Dry-Blends und Bewertung
    ihrer Verarbeitungseigenschaften für  den Lasersinterprozess (Studienarbeit)</i>.
    Paderborn, 2021.
  ieee: R. Gawlikowicz, <i>Untersuchung von Polymer-Dry-Blends und Bewertung ihrer
    Verarbeitungseigenschaften für  den Lasersinterprozess (Studienarbeit)</i>. Paderborn,
    2021.
  mla: Gawlikowicz, Roland. <i>Untersuchung von Polymer-Dry-Blends und Bewertung ihrer
    Verarbeitungseigenschaften für  den Lasersinterprozess (Studienarbeit)</i>. 2021.
  short: R. Gawlikowicz, Untersuchung von Polymer-Dry-Blends und Bewertung ihrer Verarbeitungseigenschaften
    für  den Lasersinterprozess (Studienarbeit), Paderborn, 2021.
date_created: 2023-03-14T09:03:58Z
date_updated: 2023-09-07T11:59:17Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
- _id: '9'
language:
- iso: ger
place: Paderborn
status: public
supervisor:
- first_name: Ivo
  full_name: Kletetzka, Ivo
  id: '50769'
  last_name: Kletetzka
- first_name: Hans-Joachim
  full_name: Schmid, Hans-Joachim
  id: '464'
  last_name: Schmid
  orcid: 000-0001-8590-1921
title: Untersuchung von Polymer-Dry-Blends und Bewertung ihrer Verarbeitungseigenschaften
  für  den Lasersinterprozess (Studienarbeit)
type: mastersthesis
user_id: '50769'
year: '2021'
...
---
_id: '33975'
author:
- first_name: Cederic
  full_name: Lenz, Cederic
  last_name: Lenz
- first_name: Christian
  full_name: Henke, Christian
  last_name: Henke
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  id: '552'
  last_name: Trächtler
citation:
  ama: 'Lenz C, Henke C, Trächtler A. Anomaly detection in hot forming processes using
    hybrid modeling. In: <i>2021 26th IEEE International Conference on Emerging Technologies
    and Factory Automation (ETFA)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.1109/etfa45728.2021.9613629">10.1109/etfa45728.2021.9613629</a>'
  apa: Lenz, C., Henke, C., &#38; Trächtler, A. (2021). Anomaly detection in hot forming
    processes using hybrid modeling. <i>2021 26th IEEE International Conference on
    Emerging Technologies and Factory Automation (ETFA)</i>. 2021 26th IEEE International
    Conference on Emerging Technologies and Factory Automation (ETFA), Vasteras, Sweden
    . <a href="https://doi.org/10.1109/etfa45728.2021.9613629">https://doi.org/10.1109/etfa45728.2021.9613629</a>
  bibtex: '@inproceedings{Lenz_Henke_Trächtler_2021, title={Anomaly detection in hot
    forming processes using hybrid modeling}, DOI={<a href="https://doi.org/10.1109/etfa45728.2021.9613629">10.1109/etfa45728.2021.9613629</a>},
    booktitle={2021 26th IEEE International Conference on Emerging Technologies and
    Factory Automation (ETFA)}, publisher={IEEE}, author={Lenz, Cederic and Henke,
    Christian and Trächtler, Ansgar}, year={2021} }'
  chicago: Lenz, Cederic, Christian Henke, and Ansgar Trächtler. “Anomaly Detection
    in Hot Forming Processes Using Hybrid Modeling.” In <i>2021 26th IEEE International
    Conference on Emerging Technologies and Factory Automation (ETFA)</i>. IEEE, 2021.
    <a href="https://doi.org/10.1109/etfa45728.2021.9613629">https://doi.org/10.1109/etfa45728.2021.9613629</a>.
  ieee: 'C. Lenz, C. Henke, and A. Trächtler, “Anomaly detection in hot forming processes
    using hybrid modeling,” presented at the 2021 26th IEEE International Conference
    on Emerging Technologies and Factory Automation (ETFA), Vasteras, Sweden , 2021,
    doi: <a href="https://doi.org/10.1109/etfa45728.2021.9613629">10.1109/etfa45728.2021.9613629</a>.'
  mla: Lenz, Cederic, et al. “Anomaly Detection in Hot Forming Processes Using Hybrid
    Modeling.” <i>2021 26th IEEE International Conference on Emerging Technologies
    and Factory Automation (ETFA)</i>, IEEE, 2021, doi:<a href="https://doi.org/10.1109/etfa45728.2021.9613629">10.1109/etfa45728.2021.9613629</a>.
  short: 'C. Lenz, C. Henke, A. Trächtler, in: 2021 26th IEEE International Conference
    on Emerging Technologies and Factory Automation (ETFA), IEEE, 2021.'
conference:
  end_date: 2021-09-10
  location: 'Vasteras, Sweden '
  name: 2021 26th IEEE International Conference on Emerging Technologies and Factory
    Automation (ETFA)
  start_date: 2021-09-07
date_created: 2022-11-02T16:26:24Z
date_updated: 2023-09-25T10:00:28Z
department:
- _id: '153'
- _id: '241'
doi: 10.1109/etfa45728.2021.9613629
language:
- iso: eng
publication: 2021 26th IEEE International Conference on Emerging Technologies and
  Factory Automation (ETFA)
publication_status: published
publisher: IEEE
status: public
title: Anomaly detection in hot forming processes using hybrid modeling
type: conference
user_id: '552'
year: '2021'
...
---
_id: '21587'
abstract:
- lang: eng
  text: Solving partial differential equations on unstructured grids is a cornerstone
    of engineering and scientific computing. Nowadays, heterogeneous parallel platforms
    with CPUs, GPUs, and FPGAs enable energy-efficient and computationally demanding
    simulations. We developed the HighPerMeshes C++-embedded Domain-Specific Language
    (DSL) for bridging the abstraction gap between the mathematical and algorithmic
    formulation of mesh-based algorithms for PDE problems on the one hand and an increasing
    number of heterogeneous platforms with their different parallel programming and
    runtime models on the other hand. Thus, the HighPerMeshes DSL aims at higher productivity
    in the code development process for multiple target platforms. We introduce the
    concepts as well as the basic structure of the HighPerMeshes DSL, and demonstrate
    its usage with three examples, a Poisson and monodomain problem, respectively,
    solved by the continuous finite element method, and the discontinuous Galerkin
    method for Maxwell’s equation. The mapping of the abstract algorithmic description
    onto parallel hardware, including distributed memory compute clusters, is presented.
    Finally, the achievable performance and scalability are demonstrated for a typical
    example problem on a multi-core CPU cluster.
author:
- first_name: Samer
  full_name: Alhaddad, Samer
  id: '42456'
  last_name: Alhaddad
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Stefan
  full_name: Groth, Stefan
  last_name: Groth
- first_name: Daniel
  full_name: Grünewald, Daniel
  last_name: Grünewald
- first_name: Yevgen
  full_name: Grynko, Yevgen
  id: '26059'
  last_name: Grynko
- first_name: Frank
  full_name: Hannig, Frank
  last_name: Hannig
- first_name: Tobias
  full_name: Kenter, Tobias
  id: '3145'
  last_name: Kenter
- first_name: Franz-Josef
  full_name: Pfreundt, Franz-Josef
  last_name: Pfreundt
- first_name: Christian
  full_name: Plessl, Christian
  id: '16153'
  last_name: Plessl
  orcid: 0000-0001-5728-9982
- first_name: Merlind
  full_name: Schotte, Merlind
  last_name: Schotte
- first_name: Thomas
  full_name: Steinke, Thomas
  last_name: Steinke
- first_name: Jürgen
  full_name: Teich, Jürgen
  last_name: Teich
- first_name: Martin
  full_name: Weiser, Martin
  last_name: Weiser
- first_name: Florian
  full_name: Wende, Florian
  last_name: Wende
citation:
  ama: 'Alhaddad S, Förstner J, Groth S, et al. HighPerMeshes – A Domain-Specific
    Language for Numerical Algorithms on Unstructured Grids. In: <i>Euro-Par 2020:
    Parallel Processing Workshops</i>. ; 2021. doi:<a href="https://doi.org/10.1007/978-3-030-71593-9_15">10.1007/978-3-030-71593-9_15</a>'
  apa: 'Alhaddad, S., Förstner, J., Groth, S., Grünewald, D., Grynko, Y., Hannig,
    F., Kenter, T., Pfreundt, F.-J., Plessl, C., Schotte, M., Steinke, T., Teich,
    J., Weiser, M., &#38; Wende, F. (2021). HighPerMeshes – A Domain-Specific Language
    for Numerical Algorithms on Unstructured Grids. In <i>Euro-Par 2020: Parallel
    Processing Workshops</i>. <a href="https://doi.org/10.1007/978-3-030-71593-9_15">https://doi.org/10.1007/978-3-030-71593-9_15</a>'
  bibtex: '@inbook{Alhaddad_Förstner_Groth_Grünewald_Grynko_Hannig_Kenter_Pfreundt_Plessl_Schotte_et
    al._2021, place={Cham}, title={HighPerMeshes – A Domain-Specific Language for
    Numerical Algorithms on Unstructured Grids}, DOI={<a href="https://doi.org/10.1007/978-3-030-71593-9_15">10.1007/978-3-030-71593-9_15</a>},
    booktitle={Euro-Par 2020: Parallel Processing Workshops}, author={Alhaddad, Samer
    and Förstner, Jens and Groth, Stefan and Grünewald, Daniel and Grynko, Yevgen
    and Hannig, Frank and Kenter, Tobias and Pfreundt, Franz-Josef and Plessl, Christian
    and Schotte, Merlind and et al.}, year={2021} }'
  chicago: 'Alhaddad, Samer, Jens Förstner, Stefan Groth, Daniel Grünewald, Yevgen
    Grynko, Frank Hannig, Tobias Kenter, et al. “HighPerMeshes – A Domain-Specific
    Language for Numerical Algorithms on Unstructured Grids.” In <i>Euro-Par 2020:
    Parallel Processing Workshops</i>. Cham, 2021. <a href="https://doi.org/10.1007/978-3-030-71593-9_15">https://doi.org/10.1007/978-3-030-71593-9_15</a>.'
  ieee: 'S. Alhaddad <i>et al.</i>, “HighPerMeshes – A Domain-Specific Language for
    Numerical Algorithms on Unstructured Grids,” in <i>Euro-Par 2020: Parallel Processing
    Workshops</i>, Cham, 2021.'
  mla: 'Alhaddad, Samer, et al. “HighPerMeshes – A Domain-Specific Language for Numerical
    Algorithms on Unstructured Grids.” <i>Euro-Par 2020: Parallel Processing Workshops</i>,
    2021, doi:<a href="https://doi.org/10.1007/978-3-030-71593-9_15">10.1007/978-3-030-71593-9_15</a>.'
  short: 'S. Alhaddad, J. Förstner, S. Groth, D. Grünewald, Y. Grynko, F. Hannig,
    T. Kenter, F.-J. Pfreundt, C. Plessl, M. Schotte, T. Steinke, J. Teich, M. Weiser,
    F. Wende, in: Euro-Par 2020: Parallel Processing Workshops, Cham, 2021.'
date_created: 2021-03-31T19:39:42Z
date_updated: 2023-09-26T11:40:25Z
ddc:
- '004'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '27'
- _id: '518'
doi: 10.1007/978-3-030-71593-9_15
file:
- access_level: closed
  content_type: application/pdf
  creator: fossie
  date_created: 2021-03-31T19:42:52Z
  date_updated: 2021-03-31T19:42:52Z
  file_id: '21588'
  file_name: 2021-03 Alhaddad2021_Chapter_HighPerMeshesADomain-SpecificL.pdf
  file_size: 564398
  relation: main_file
  success: 1
file_date_updated: 2021-03-31T19:42:52Z
has_accepted_license: '1'
keyword:
- tet_topic_hpc
language:
- iso: eng
place: Cham
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: 'Euro-Par 2020: Parallel Processing Workshops'
publication_identifier:
  isbn:
  - '9783030715922'
  - '9783030715939'
  issn:
  - 0302-9743
  - 1611-3349
publication_status: published
quality_controlled: '1'
status: public
title: HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured
  Grids
type: book_chapter
user_id: '15278'
year: '2021'
...
---
_id: '29293'
article_number: '100065'
author:
- first_name: Sven
  full_name: Martin, Sven
  id: '38177'
  last_name: Martin
- first_name: Jan
  full_name: Schütte, Jan
  id: '22109'
  last_name: Schütte
  orcid: 0000-0001-9025-9742
- first_name: C.
  full_name: Bäumler, C.
  last_name: Bäumler
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
citation:
  ama: Martin S, Schütte J, Bäumler C, Sextro W, Tröster T. Identification of joints
    for a load-adapted shape in a body in white using steady state vehicle simulations.
    <i>Forces in Mechanics</i>. 2021;6. doi:<a href="https://doi.org/10.1016/j.finmec.2021.100065">10.1016/j.finmec.2021.100065</a>
  apa: Martin, S., Schütte, J., Bäumler, C., Sextro, W., &#38; Tröster, T. (2021).
    Identification of joints for a load-adapted shape in a body in white using steady
    state vehicle simulations. <i>Forces in Mechanics</i>, <i>6</i>, Article 100065.
    <a href="https://doi.org/10.1016/j.finmec.2021.100065">https://doi.org/10.1016/j.finmec.2021.100065</a>
  bibtex: '@article{Martin_Schütte_Bäumler_Sextro_Tröster_2021, title={Identification
    of joints for a load-adapted shape in a body in white using steady state vehicle
    simulations}, volume={6}, DOI={<a href="https://doi.org/10.1016/j.finmec.2021.100065">10.1016/j.finmec.2021.100065</a>},
    number={100065}, journal={Forces in Mechanics}, publisher={Elsevier BV}, author={Martin,
    Sven and Schütte, Jan and Bäumler, C. and Sextro, Walter and Tröster, Thomas},
    year={2021} }'
  chicago: Martin, Sven, Jan Schütte, C. Bäumler, Walter Sextro, and Thomas Tröster.
    “Identification of Joints for a Load-Adapted Shape in a Body in White Using Steady
    State Vehicle Simulations.” <i>Forces in Mechanics</i> 6 (2021). <a href="https://doi.org/10.1016/j.finmec.2021.100065">https://doi.org/10.1016/j.finmec.2021.100065</a>.
  ieee: 'S. Martin, J. Schütte, C. Bäumler, W. Sextro, and T. Tröster, “Identification
    of joints for a load-adapted shape in a body in white using steady state vehicle
    simulations,” <i>Forces in Mechanics</i>, vol. 6, Art. no. 100065, 2021, doi:
    <a href="https://doi.org/10.1016/j.finmec.2021.100065">10.1016/j.finmec.2021.100065</a>.'
  mla: Martin, Sven, et al. “Identification of Joints for a Load-Adapted Shape in
    a Body in White Using Steady State Vehicle Simulations.” <i>Forces in Mechanics</i>,
    vol. 6, 100065, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.finmec.2021.100065">10.1016/j.finmec.2021.100065</a>.
  short: S. Martin, J. Schütte, C. Bäumler, W. Sextro, T. Tröster, Forces in Mechanics
    6 (2021).
date_created: 2022-01-12T10:30:02Z
date_updated: 2025-06-06T08:05:56Z
department:
- _id: '151'
- _id: '630'
- _id: '149'
- _id: '321'
- _id: '9'
doi: 10.1016/j.finmec.2021.100065
intvolume: '         6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/S2666359721000561
oa: '1'
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '132'
  name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
  name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: Forces in Mechanics
publication_identifier:
  issn:
  - 2666-3597
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Identification of joints for a load-adapted shape in a body in white using
  steady state vehicle simulations
type: journal_article
user_id: '15952'
volume: 6
year: '2021'
...
