---
_id: '55743'
abstract:
- lang: eng
  text: The use of hybrid materials as a combination of fibre-reinforced plastic (FRP)
    and metal is of great interest in order to meet the increasing demands for sustainability,
    efficiency, and emission reduction based on the principle of lightweight design.
    These two components can therefore be joined using the intrinsic joining technique,
    which is formed by curing the matrix of the FRP component. In this study, for
    the hybrid joint, unidirectionally pre-impregnated semi-finished products (prepregs)
    with duromer matrix resin and micro-alloyed HC340LA steel were used. In order
    to conduct a detailed investigation, the damage mechanisms of intrinsically produced
    fibre metal laminates (FMLs), a new clamping device, and a novel pressing tool
    were designed and put into operation. The prepregs were prestressed by applying
    a preloading force using a specially designed prestressing frame. Hybrid specimens
    were then produced and subjected to nanoindentation and a shear tensile test.
    In particular, the effect of the residual stress state by varying the defined
    prestressing force on the damage mechanisms was studied. The results showed that
    no fracture patterns occurred in the interface of the specimens without preloading
    as a result of curing at 120 °C, whereas specimens with preloading failed at the
    boundary layer in the tensile range. Nevertheless, all specimens cured at 160
    °C failed at the boundary layer in the tensile range. Furthermore, it was proven
    that the force and displacement of the preloaded specimens were promisingly higher
    than those of the unpreloaded specimens.
article_number: '316'
article_type: original
author:
- first_name: Hayrettin
  full_name: Irmak, Hayrettin
  id: '75657'
  last_name: Irmak
  orcid: https://orcid.org/0009-0009-6267-2957
- first_name: Steffen Rainer
  full_name: Tinkloh, Steffen Rainer
  id: '72722'
  last_name: Tinkloh
- first_name: Thorsten
  full_name: Marten, Thorsten
  id: '338'
  last_name: Marten
  orcid: 0009-0001-6433-7839
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
citation:
  ama: Irmak H, Tinkloh SR, Marten T, Tröster T. Development of a Tool Concept for
    Prestressed Fibre Metal Laminates and Their Effect on Interface Failure. <i>Journal
    of Composites Science</i>. 2024;8(8). doi:<a href="https://doi.org/10.3390/jcs8080316">10.3390/jcs8080316</a>
  apa: Irmak, H., Tinkloh, S. R., Marten, T., &#38; Tröster, T. (2024). Development
    of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface
    Failure. <i>Journal of Composites Science</i>, <i>8</i>(8), Article 316. <a href="https://doi.org/10.3390/jcs8080316">https://doi.org/10.3390/jcs8080316</a>
  bibtex: '@article{Irmak_Tinkloh_Marten_Tröster_2024, title={Development of a Tool
    Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure},
    volume={8}, DOI={<a href="https://doi.org/10.3390/jcs8080316">10.3390/jcs8080316</a>},
    number={8316}, journal={Journal of Composites Science}, publisher={MDPI AG}, author={Irmak,
    Hayrettin and Tinkloh, Steffen Rainer and Marten, Thorsten and Tröster, Thomas},
    year={2024} }'
  chicago: Irmak, Hayrettin, Steffen Rainer Tinkloh, Thorsten Marten, and Thomas Tröster.
    “Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their
    Effect on Interface Failure.” <i>Journal of Composites Science</i> 8, no. 8 (2024).
    <a href="https://doi.org/10.3390/jcs8080316">https://doi.org/10.3390/jcs8080316</a>.
  ieee: 'H. Irmak, S. R. Tinkloh, T. Marten, and T. Tröster, “Development of a Tool
    Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure,”
    <i>Journal of Composites Science</i>, vol. 8, no. 8, Art. no. 316, 2024, doi:
    <a href="https://doi.org/10.3390/jcs8080316">10.3390/jcs8080316</a>.'
  mla: Irmak, Hayrettin, et al. “Development of a Tool Concept for Prestressed Fibre
    Metal Laminates and Their Effect on Interface Failure.” <i>Journal of Composites
    Science</i>, vol. 8, no. 8, 316, MDPI AG, 2024, doi:<a href="https://doi.org/10.3390/jcs8080316">10.3390/jcs8080316</a>.
  short: H. Irmak, S.R. Tinkloh, T. Marten, T. Tröster, Journal of Composites Science
    8 (2024).
date_created: 2024-08-23T06:47:27Z
date_updated: 2026-03-23T10:31:09Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/jcs8080316
intvolume: '         8'
issue: '8'
keyword:
- CFRP
- prestressing
- fibre metal laminate
- interface
- prepreg
- shear tensile test
language:
- iso: eng
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their
  Effect on Interface Failure
type: journal_article
user_id: '338'
volume: 8
year: '2024'
...
---
_id: '48657'
author:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
- first_name: Lisa
  full_name: Tölle, Lisa
  id: '82465'
  last_name: Tölle
- first_name: C.
  full_name: Greb, C.
  last_name: Greb
- first_name: M.
  full_name: Haag, M.
  last_name: Haag
citation:
  ama: Moritzer E, Tölle L, Greb C, Haag M. Conceptions and Feasibility Study of Fiber
    Orientation in the Melt as Part of a Completely Circular Recycling Concept for
    Fiber-Reinforced Thermoplastics. <i>Journal of Composites Science</i>. 2023;(7):267.
    doi:<a href="https://doi.org/10.3390/jcs7070267">10.3390/jcs7070267</a>
  apa: Moritzer, E., Tölle, L., Greb, C., &#38; Haag, M. (2023). Conceptions and Feasibility
    Study of Fiber Orientation in the Melt as Part of a Completely Circular Recycling
    Concept for Fiber-Reinforced Thermoplastics. <i>Journal of Composites Science</i>,
    <i>7</i>, 267. <a href="https://doi.org/10.3390/jcs7070267">https://doi.org/10.3390/jcs7070267</a>
  bibtex: '@article{Moritzer_Tölle_Greb_Haag_2023, title={Conceptions and Feasibility
    Study of Fiber Orientation in the Melt as Part of a Completely Circular Recycling
    Concept for Fiber-Reinforced Thermoplastics}, DOI={<a href="https://doi.org/10.3390/jcs7070267">10.3390/jcs7070267</a>},
    number={7}, journal={Journal of Composites Science}, author={Moritzer, Elmar and
    Tölle, Lisa and Greb, C. and Haag, M.}, year={2023}, pages={267} }'
  chicago: 'Moritzer, Elmar, Lisa Tölle, C. Greb, and M. Haag. “Conceptions and Feasibility
    Study of Fiber Orientation in the Melt as Part of a Completely Circular Recycling
    Concept for Fiber-Reinforced Thermoplastics.” <i>Journal of Composites Science</i>,
    no. 7 (2023): 267. <a href="https://doi.org/10.3390/jcs7070267">https://doi.org/10.3390/jcs7070267</a>.'
  ieee: 'E. Moritzer, L. Tölle, C. Greb, and M. Haag, “Conceptions and Feasibility
    Study of Fiber Orientation in the Melt as Part of a Completely Circular Recycling
    Concept for Fiber-Reinforced Thermoplastics,” <i>Journal of Composites Science</i>,
    no. 7, p. 267, 2023, doi: <a href="https://doi.org/10.3390/jcs7070267">10.3390/jcs7070267</a>.'
  mla: Moritzer, Elmar, et al. “Conceptions and Feasibility Study of Fiber Orientation
    in the Melt as Part of a Completely Circular Recycling Concept for Fiber-Reinforced
    Thermoplastics.” <i>Journal of Composites Science</i>, no. 7, 2023, p. 267, doi:<a
    href="https://doi.org/10.3390/jcs7070267">10.3390/jcs7070267</a>.
  short: E. Moritzer, L. Tölle, C. Greb, M. Haag, Journal of Composites Science (2023)
    267.
date_created: 2023-11-07T13:33:50Z
date_updated: 2024-03-25T09:20:12Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
doi: 10.3390/jcs7070267
issue: '7'
language:
- iso: eng
page: '267'
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
quality_controlled: '1'
status: public
title: Conceptions and Feasibility Study of Fiber Orientation in the Melt as Part
  of a Completely Circular Recycling Concept for Fiber-Reinforced Thermoplastics
type: journal_article
user_id: '44116'
year: '2023'
...
---
_id: '55760'
abstract:
- lang: eng
  text: The transferability of structure–property relationships for laser-pretreated
    metal adhesive joints to laser-pretreated metal–carbon-fiber-reinforced plastic
    (CFRP) bonds was investigated. Single-lap shear tests were performed on hybrid
    AW 6082-T6–CFRP specimens pretreated with the same pulsed laser surface parameter
    sets on the metal surface as previously tested, AW 6082-T6–E320 metal adhesive
    joints. The fracture surfaces were characterized to determine the type of failure
    and elucidate differences and commonalities in the link between surface structures
    and single-lap shear strengths. Digital image analyses of the hybrid specimens’
    fractured surfaces were used to quantify remaining CFRP fragments on the metallic
    joint side. The results indicate that high surface enlargements and the presence
    of undercut structures lead to single-lap shear strengths exceeding 40 MPa and
    35 MPa for unaged and aged hybrid specimens, respectively. Whereas for the metal–polymer
    joints, the trend from high strength to weakly bonded specimens is largely continuous
    with the degree of surface structuring, hybrid metal–CFRP joints exhibit a drastic
    drop in joint performance after aging if the laser-generated surface structures
    are less pronounced with low surface enlargements and crater depths. Surface features
    and hydrothermal aging determine whether the specimens fail cohesively or adhesively.</jats:p>
article_number: '427'
article_type: original
author:
- first_name: Jonathan
  full_name: Freund, Jonathan
  last_name: Freund
- first_name: Isabel
  full_name: Lützenkirchen, Isabel
  last_name: Lützenkirchen
- first_name: Miriam
  full_name: Löbbecke, Miriam
  last_name: Löbbecke
- first_name: Alexander
  full_name: Delp, Alexander
  last_name: Delp
- first_name: Frank
  full_name: Walther, Frank
  last_name: Walther
- first_name: Shuang
  full_name: Wu, Shuang
  id: '48039'
  last_name: Wu
  orcid: 0000-0001-8645-9952
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Jan
  full_name: Haubrich, Jan
  last_name: Haubrich
citation:
  ama: Freund J, Lützenkirchen I, Löbbecke M, et al. Transferability of the Structure–Property
    Relationships from Laser-Pretreated Metal–Polymer Joints to Aluminum–CFRP Hybrid
    Joints. <i>Journal of Composites Science</i>. 2023;7(10). doi:<a href="https://doi.org/10.3390/jcs7100427">10.3390/jcs7100427</a>
  apa: Freund, J., Lützenkirchen, I., Löbbecke, M., Delp, A., Walther, F., Wu, S.,
    Tröster, T., &#38; Haubrich, J. (2023). Transferability of the Structure–Property
    Relationships from Laser-Pretreated Metal–Polymer Joints to Aluminum–CFRP Hybrid
    Joints. <i>Journal of Composites Science</i>, <i>7</i>(10), Article 427. <a href="https://doi.org/10.3390/jcs7100427">https://doi.org/10.3390/jcs7100427</a>
  bibtex: '@article{Freund_Lützenkirchen_Löbbecke_Delp_Walther_Wu_Tröster_Haubrich_2023,
    title={Transferability of the Structure–Property Relationships from Laser-Pretreated
    Metal–Polymer Joints to Aluminum–CFRP Hybrid Joints}, volume={7}, DOI={<a href="https://doi.org/10.3390/jcs7100427">10.3390/jcs7100427</a>},
    number={10427}, journal={Journal of Composites Science}, publisher={MDPI AG},
    author={Freund, Jonathan and Lützenkirchen, Isabel and Löbbecke, Miriam and Delp,
    Alexander and Walther, Frank and Wu, Shuang and Tröster, Thomas and Haubrich,
    Jan}, year={2023} }'
  chicago: Freund, Jonathan, Isabel Lützenkirchen, Miriam Löbbecke, Alexander Delp,
    Frank Walther, Shuang Wu, Thomas Tröster, and Jan Haubrich. “Transferability of
    the Structure–Property Relationships from Laser-Pretreated Metal–Polymer Joints
    to Aluminum–CFRP Hybrid Joints.” <i>Journal of Composites Science</i> 7, no. 10
    (2023). <a href="https://doi.org/10.3390/jcs7100427">https://doi.org/10.3390/jcs7100427</a>.
  ieee: 'J. Freund <i>et al.</i>, “Transferability of the Structure–Property Relationships
    from Laser-Pretreated Metal–Polymer Joints to Aluminum–CFRP Hybrid Joints,” <i>Journal
    of Composites Science</i>, vol. 7, no. 10, Art. no. 427, 2023, doi: <a href="https://doi.org/10.3390/jcs7100427">10.3390/jcs7100427</a>.'
  mla: Freund, Jonathan, et al. “Transferability of the Structure–Property Relationships
    from Laser-Pretreated Metal–Polymer Joints to Aluminum–CFRP Hybrid Joints.” <i>Journal
    of Composites Science</i>, vol. 7, no. 10, 427, MDPI AG, 2023, doi:<a href="https://doi.org/10.3390/jcs7100427">10.3390/jcs7100427</a>.
  short: J. Freund, I. Lützenkirchen, M. Löbbecke, A. Delp, F. Walther, S. Wu, T.
    Tröster, J. Haubrich, Journal of Composites Science 7 (2023).
date_created: 2024-08-26T10:45:05Z
date_updated: 2025-01-30T12:31:55Z
department:
- _id: '321'
- _id: '149'
- _id: '9'
doi: 10.3390/jcs7100427
intvolume: '         7'
issue: '10'
language:
- iso: eng
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Transferability of the Structure–Property Relationships from Laser-Pretreated
  Metal–Polymer Joints to Aluminum–CFRP Hybrid Joints
type: journal_article
user_id: '48039'
volume: 7
year: '2023'
...
---
_id: '34256'
abstract:
- lang: eng
  text: '<jats:p>The 3D shear deformation and failure behaviour of a glass fibre reinforced
    polypropylene in a shear strain rate range of γ˙=2.2×10−4 to 3.4 1s is investigated.
    An Iosipescu testing setup on a servo-hydraulic high speed testing unit is used
    to experimentally characterise the in-plane and out-of-plane behaviour utilising
    three specimen configurations (12-, 13- and 31-direction). The experimental procedure
    as well as the testing results are presented and discussed. The measured shear
    stress–shear strain relations indicate a highly nonlinear behaviour and a distinct
    rate dependency. Two methods are investigated to derive according material characteristics:
    a classical engineering approach based on moduli and strengths and a data driven
    approach based on the curve progression. In all cases a Johnson–Cook based formulation
    is used to describe rate dependency. The analysis methodologies as well as the
    derived model parameters are described and discussed in detail. It is shown that
    a phenomenologically enhanced regression can be used to obtain material characteristics
    for a generalising constitutive model based on the data driven approach.</jats:p>'
article_number: '318'
author:
- first_name: Johannes
  full_name: Gerritzen, Johannes
  last_name: Gerritzen
- first_name: Andreas
  full_name: Hornig, Andreas
  last_name: Hornig
- first_name: Benjamin
  full_name: Gröger, Benjamin
  last_name: Gröger
- first_name: Maik
  full_name: Gude, Maik
  last_name: Gude
citation:
  ama: 'Gerritzen J, Hornig A, Gröger B, Gude M. A Data Driven Modelling Approach
    for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
    Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
    Parameters. <i>Journal of Composites Science</i>. 2022;6(10). doi:<a href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>'
  apa: 'Gerritzen, J., Hornig, A., Gröger, B., &#38; Gude, M. (2022). A Data Driven
    Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure
    of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and
    Deriving Modelling Parameters. <i>Journal of Composites Science</i>, <i>6</i>(10),
    Article 318. <a href="https://doi.org/10.3390/jcs6100318">https://doi.org/10.3390/jcs6100318</a>'
  bibtex: '@article{Gerritzen_Hornig_Gröger_Gude_2022, title={A Data Driven Modelling
    Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
    Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
    Parameters}, volume={6}, DOI={<a href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>},
    number={10318}, journal={Journal of Composites Science}, publisher={MDPI AG},
    author={Gerritzen, Johannes and Hornig, Andreas and Gröger, Benjamin and Gude,
    Maik}, year={2022} }'
  chicago: 'Gerritzen, Johannes, Andreas Hornig, Benjamin Gröger, and Maik Gude. “A
    Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
    and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
    and Deriving Modelling Parameters.” <i>Journal of Composites Science</i> 6, no.
    10 (2022). <a href="https://doi.org/10.3390/jcs6100318">https://doi.org/10.3390/jcs6100318</a>.'
  ieee: 'J. Gerritzen, A. Hornig, B. Gröger, and M. Gude, “A Data Driven Modelling
    Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
    Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
    Parameters,” <i>Journal of Composites Science</i>, vol. 6, no. 10, Art. no. 318,
    2022, doi: <a href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>.'
  mla: 'Gerritzen, Johannes, et al. “A Data Driven Modelling Approach for the Strain
    Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced
    Composites: Experimental Characterisation and Deriving Modelling Parameters.”
    <i>Journal of Composites Science</i>, vol. 6, no. 10, 318, MDPI AG, 2022, doi:<a
    href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>.'
  short: J. Gerritzen, A. Hornig, B. Gröger, M. Gude, Journal of Composites Science
    6 (2022).
date_created: 2022-12-06T20:42:38Z
date_updated: 2023-01-02T11:06:15Z
department:
- _id: '630'
doi: 10.3390/jcs6100318
intvolume: '         6'
issue: '10'
keyword:
- Engineering (miscellaneous)
- Ceramics and Composites
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.mdpi.com/2504-477X/6/10/318
oa: '1'
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
  name: 'TRR 285 – A03: TRR 285 - Subproject A03'
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
status: public
title: 'A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
  and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
  and Deriving Modelling Parameters'
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '33856'
abstract:
- lang: eng
  text: <jats:p>Wood–plastic composites (WPC) are enjoying a steady increase in popularity.
    In addition to the extrusion of decking boards, the material is also used increasingly
    in injection molding. Depending on the formulation, geometry and process parameters,
    WPC tends to exhibit irregular filling behavior, similar to the processing of
    thermosets. In this work, the influence of matrix material and wood fiber content
    on the flow, mold filling and segregation behavior of WPC is analyzed. For this
    purpose, investigations were carried out on a flow spiral and a sheet cavity.
    WPC based on thermoplastic polyurethane (TPU) achieves significantly higher flow
    path lengths at a wood mass content of 30% than polypropylene (PP)-based WPC.
    The opposite behavior occurs at higher wood contents due to the different shear
    thinning behavior. Slightly decreased wood contents could be observed at the beginning
    of the flow path and greatly increased wood contents at the end of the flow path,
    compared to the starting material. When using the plate cavity, flow anomalies
    in the form of free jets occur as a function of the wood content, with TPU exhibiting
    the more critical behavior. The flow front is frayed, but in contrast to the flow
    spiral, no significant wood accumulation could be detected due to the shorter
    flow path lengths.</jats:p>
article_number: '321'
author:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
- first_name: Felix
  full_name: Flachmann, Felix
  id: '38212'
  last_name: Flachmann
  orcid: 0000-0002-7651-7028
- first_name: Maximilian
  full_name: Richters, Maximilian
  id: '38221'
  last_name: Richters
- first_name: Marcel
  full_name: Neugebauer, Marcel
  last_name: Neugebauer
citation:
  ama: Moritzer E, Flachmann F, Richters M, Neugebauer M. Analysis of the Segregation
    Phenomena of Wood Fiber Reinforced Plastics. <i>Journal of Composites Science</i>.
    2022;6(10). doi:<a href="https://doi.org/10.3390/jcs6100321">10.3390/jcs6100321</a>
  apa: Moritzer, E., Flachmann, F., Richters, M., &#38; Neugebauer, M. (2022). Analysis
    of the Segregation Phenomena of Wood Fiber Reinforced Plastics. <i>Journal of
    Composites Science</i>, <i>6</i>(10), Article 321. <a href="https://doi.org/10.3390/jcs6100321">https://doi.org/10.3390/jcs6100321</a>
  bibtex: '@article{Moritzer_Flachmann_Richters_Neugebauer_2022, title={Analysis of
    the Segregation Phenomena of Wood Fiber Reinforced Plastics}, volume={6}, DOI={<a
    href="https://doi.org/10.3390/jcs6100321">10.3390/jcs6100321</a>}, number={10321},
    journal={Journal of Composites Science}, publisher={MDPI AG}, author={Moritzer,
    Elmar and Flachmann, Felix and Richters, Maximilian and Neugebauer, Marcel}, year={2022}
    }'
  chicago: Moritzer, Elmar, Felix Flachmann, Maximilian Richters, and Marcel Neugebauer.
    “Analysis of the Segregation Phenomena of Wood Fiber Reinforced Plastics.” <i>Journal
    of Composites Science</i> 6, no. 10 (2022). <a href="https://doi.org/10.3390/jcs6100321">https://doi.org/10.3390/jcs6100321</a>.
  ieee: 'E. Moritzer, F. Flachmann, M. Richters, and M. Neugebauer, “Analysis of the
    Segregation Phenomena of Wood Fiber Reinforced Plastics,” <i>Journal of Composites
    Science</i>, vol. 6, no. 10, Art. no. 321, 2022, doi: <a href="https://doi.org/10.3390/jcs6100321">10.3390/jcs6100321</a>.'
  mla: Moritzer, Elmar, et al. “Analysis of the Segregation Phenomena of Wood Fiber
    Reinforced Plastics.” <i>Journal of Composites Science</i>, vol. 6, no. 10, 321,
    MDPI AG, 2022, doi:<a href="https://doi.org/10.3390/jcs6100321">10.3390/jcs6100321</a>.
  short: E. Moritzer, F. Flachmann, M. Richters, M. Neugebauer, Journal of Composites
    Science 6 (2022).
date_created: 2022-10-21T05:57:03Z
date_updated: 2023-04-26T13:40:41Z
department:
- _id: '321'
- _id: '9'
- _id: '367'
- _id: '147'
doi: 10.3390/jcs6100321
intvolume: '         6'
issue: '10'
keyword:
- Engineering (miscellaneous)
- Ceramics and Composites
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Analysis of the Segregation Phenomena of Wood Fiber Reinforced Plastics
type: journal_article
user_id: '38212'
volume: 6
year: '2022'
...
---
_id: '31496'
abstract:
- lang: eng
  text: <jats:p>Carbon fiber reinforced plastics (CFRPs) gained high interest in industrial
    applications because of their excellent strength and low specific weight. The
    stacking sequence of the unidirectional plies forming a CFRP laminate, and their
    thicknesses, primarily determine the mechanical performance. However, during manufacturing,
    defects, e.g., pores and residual stresses, are induced, both affecting the mechanical
    properties. The objective of the present work is to accurately measure residual
    stresses in CFRPs as well as to investigate the effects of stacking sequence,
    overall laminate thickness, and the presence of pores on the residual stress state.
    Residual stresses were measured through the incremental hole-drilling method (HDM).
    Adequate procedures have been applied to evaluate the residual stresses for orthotropic
    materials, including calculating the calibration coefficients through finite element
    analysis (FEA) based on stacking sequence, laminate thickness and mechanical properties.
    Using optical microscopy (OM) and computed tomography (CT), profound insights
    into the cross-sectional and three-dimensional microstructure, e.g., location
    and shape of process-induced pores, were obtained. This microstructural information
    allowed for a comprehensive understanding of the experimentally determined strain
    and stress results, particularly at the transition zone between the individual
    plies. The effect of pores on residual stresses was investigated by considering
    pores to calculate the calibration coefficients at a depth of 0.06 mm to 0.12
    mm in the model and utilizing these results for residual stress evaluation. A
    maximum difference of 46% in stress between defect-free and porous material sample
    conditions was observed at a hole depth of 0.65 mm. The significance of employing
    correctly calculated coefficients for the residual stress evaluation is highlighted
    by mechanical validation tests.</jats:p>
article_number: '138'
author:
- first_name: Tao
  full_name: Wu, Tao
  last_name: Wu
- first_name: Roland
  full_name: Kruse, Roland
  last_name: Kruse
- first_name: Steffen Rainer
  full_name: Tinkloh, Steffen Rainer
  id: '72722'
  last_name: Tinkloh
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Wolfgang
  full_name: Zinn, Wolfgang
  last_name: Zinn
- first_name: Christian
  full_name: Lauhoff, Christian
  last_name: Lauhoff
- first_name: Thomas
  full_name: Niendorf, Thomas
  last_name: Niendorf
citation:
  ama: 'Wu T, Kruse R, Tinkloh SR, et al. Experimental Analysis of Residual Stresses
    in CFRPs through Hole-Drilling Method: The Role of Stacking Sequence, Thickness,
    and Defects. <i>Journal of Composites Science</i>. 2022;6(5). doi:<a href="https://doi.org/10.3390/jcs6050138">10.3390/jcs6050138</a>'
  apa: 'Wu, T., Kruse, R., Tinkloh, S. R., Tröster, T., Zinn, W., Lauhoff, C., &#38;
    Niendorf, T. (2022). Experimental Analysis of Residual Stresses in CFRPs through
    Hole-Drilling Method: The Role of Stacking Sequence, Thickness, and Defects. <i>Journal
    of Composites Science</i>, <i>6</i>(5), Article 138. <a href="https://doi.org/10.3390/jcs6050138">https://doi.org/10.3390/jcs6050138</a>'
  bibtex: '@article{Wu_Kruse_Tinkloh_Tröster_Zinn_Lauhoff_Niendorf_2022, title={Experimental
    Analysis of Residual Stresses in CFRPs through Hole-Drilling Method: The Role
    of Stacking Sequence, Thickness, and Defects}, volume={6}, DOI={<a href="https://doi.org/10.3390/jcs6050138">10.3390/jcs6050138</a>},
    number={5138}, journal={Journal of Composites Science}, publisher={MDPI AG}, author={Wu,
    Tao and Kruse, Roland and Tinkloh, Steffen Rainer and Tröster, Thomas and Zinn,
    Wolfgang and Lauhoff, Christian and Niendorf, Thomas}, year={2022} }'
  chicago: 'Wu, Tao, Roland Kruse, Steffen Rainer Tinkloh, Thomas Tröster, Wolfgang
    Zinn, Christian Lauhoff, and Thomas Niendorf. “Experimental Analysis of Residual
    Stresses in CFRPs through Hole-Drilling Method: The Role of Stacking Sequence,
    Thickness, and Defects.” <i>Journal of Composites Science</i> 6, no. 5 (2022).
    <a href="https://doi.org/10.3390/jcs6050138">https://doi.org/10.3390/jcs6050138</a>.'
  ieee: 'T. Wu <i>et al.</i>, “Experimental Analysis of Residual Stresses in CFRPs
    through Hole-Drilling Method: The Role of Stacking Sequence, Thickness, and Defects,”
    <i>Journal of Composites Science</i>, vol. 6, no. 5, Art. no. 138, 2022, doi:
    <a href="https://doi.org/10.3390/jcs6050138">10.3390/jcs6050138</a>.'
  mla: 'Wu, Tao, et al. “Experimental Analysis of Residual Stresses in CFRPs through
    Hole-Drilling Method: The Role of Stacking Sequence, Thickness, and Defects.”
    <i>Journal of Composites Science</i>, vol. 6, no. 5, 138, MDPI AG, 2022, doi:<a
    href="https://doi.org/10.3390/jcs6050138">10.3390/jcs6050138</a>.'
  short: T. Wu, R. Kruse, S.R. Tinkloh, T. Tröster, W. Zinn, C. Lauhoff, T. Niendorf,
    Journal of Composites Science 6 (2022).
date_created: 2022-05-30T07:04:34Z
date_updated: 2023-04-28T11:31:42Z
department:
- _id: '149'
- _id: '321'
doi: 10.3390/jcs6050138
funded_apc: '1'
intvolume: '         6'
issue: '5'
keyword:
- Engineering (miscellaneous)
- Ceramics and Composites
language:
- iso: eng
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Experimental Analysis of Residual Stresses in CFRPs through Hole-Drilling
  Method: The Role of Stacking Sequence, Thickness, and Defects'
type: journal_article
user_id: '72722'
volume: 6
year: '2022'
...
---
_id: '63829'
abstract:
- lang: eng
  text: '<jats:p>The 3D shear deformation and failure behaviour of a glass fibre reinforced
    polypropylene in a shear strain rate range of γ˙=2.2×10−4 to 3.4 1s is investigated.
    An Iosipescu testing setup on a servo-hydraulic high speed testing unit is used
    to experimentally characterise the in-plane and out-of-plane behaviour utilising
    three specimen configurations (12-, 13- and 31-direction). The experimental procedure
    as well as the testing results are presented and discussed. The measured shear
    stress–shear strain relations indicate a highly nonlinear behaviour and a distinct
    rate dependency. Two methods are investigated to derive according material characteristics:
    a classical engineering approach based on moduli and strengths and a data driven
    approach based on the curve progression. In all cases a Johnson–Cook based formulation
    is used to describe rate dependency. The analysis methodologies as well as the
    derived model parameters are described and discussed in detail. It is shown that
    a phenomenologically enhanced regression can be used to obtain material characteristics
    for a generalising constitutive model based on the data driven approach.</jats:p>'
article_number: '318'
article_type: original
author:
- first_name: Johannes
  full_name: Gerritzen, Johannes
  id: '105344'
  last_name: Gerritzen
  orcid: 0000-0002-0169-8602
- first_name: Andreas
  full_name: Hornig, Andreas
  last_name: Hornig
- first_name: Benjamin
  full_name: Gröger, Benjamin
  last_name: Gröger
- first_name: Maik
  full_name: Gude, Maik
  last_name: Gude
citation:
  ama: 'Gerritzen J, Hornig A, Gröger B, Gude M. A Data Driven Modelling Approach
    for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
    Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
    Parameters. <i>Journal of Composites Science</i>. 2022;6(10). doi:<a href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>'
  apa: 'Gerritzen, J., Hornig, A., Gröger, B., &#38; Gude, M. (2022). A Data Driven
    Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure
    of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and
    Deriving Modelling Parameters. <i>Journal of Composites Science</i>, <i>6</i>(10),
    Article 318. <a href="https://doi.org/10.3390/jcs6100318">https://doi.org/10.3390/jcs6100318</a>'
  bibtex: '@article{Gerritzen_Hornig_Gröger_Gude_2022, title={A Data Driven Modelling
    Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
    Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
    Parameters}, volume={6}, DOI={<a href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>},
    number={10318}, journal={Journal of Composites Science}, publisher={MDPI AG},
    author={Gerritzen, Johannes and Hornig, Andreas and Gröger, Benjamin and Gude,
    Maik}, year={2022} }'
  chicago: 'Gerritzen, Johannes, Andreas Hornig, Benjamin Gröger, and Maik Gude. “A
    Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
    and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
    and Deriving Modelling Parameters.” <i>Journal of Composites Science</i> 6, no.
    10 (2022). <a href="https://doi.org/10.3390/jcs6100318">https://doi.org/10.3390/jcs6100318</a>.'
  ieee: 'J. Gerritzen, A. Hornig, B. Gröger, and M. Gude, “A Data Driven Modelling
    Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
    Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
    Parameters,” <i>Journal of Composites Science</i>, vol. 6, no. 10, Art. no. 318,
    2022, doi: <a href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>.'
  mla: 'Gerritzen, Johannes, et al. “A Data Driven Modelling Approach for the Strain
    Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced
    Composites: Experimental Characterisation and Deriving Modelling Parameters.”
    <i>Journal of Composites Science</i>, vol. 6, no. 10, 318, MDPI AG, 2022, doi:<a
    href="https://doi.org/10.3390/jcs6100318">10.3390/jcs6100318</a>.'
  short: J. Gerritzen, A. Hornig, B. Gröger, M. Gude, Journal of Composites Science
    6 (2022).
date_created: 2026-02-02T08:41:00Z
date_updated: 2026-02-27T06:47:18Z
doi: 10.3390/jcs6100318
intvolume: '         6'
issue: '10'
language:
- iso: eng
project:
- _id: '137'
  name: TRR 285 - Subproject A03
- _id: '131'
  name: TRR 285 - Project Area A
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
status: public
title: 'A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
  and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
  and Deriving Modelling Parameters'
type: journal_article
user_id: '105344'
volume: 6
year: '2022'
...
---
_id: '30924'
abstract:
- lang: eng
  text: <jats:p>Wood fiber reinforcement of plastics is almost limited to polypropylene,
    polyethylene, polyvinyl chloride and polystyrene. Wood fiber reinforcement of
    thermoplastic polyurethanes (TPU) is a new research field and paltry studied scientifically.
    Wood fiber reinforcement can carry out synergistic effects between sustainability,
    material or product price reduction, improved mechanical properties at high elongation,
    and brilliant appearance and haptics. In order to evaluate to what extent the
    improvement of mechanical properties depend on material-specific parameters (fiber
    type, fiber content) and on process-specific parameters (holding pressure, temperature
    control and injection speed), differently filled compounds were injection molded
    according to a partial factorial test plan and subjected to characterizing test
    procedures (tensile test, Shore hardness and notched impact test). Tensile strength
    showed significant dependence on barrel temperature, fiber type and interaction
    between holding pressure and barrel temperature in the region of interest. Young’s
    modulus can be influenced by fiber content but not by fiber type. Notched impact
    strength showed a significant influence of cylinder temperature, fiber content,
    fiber type and the interaction between cylinder temperature and fiber content
    in the region of interest. Shore hardness is related to fiber content and the
    interaction between mold temperature and injection flow rate. Our results show
    not only that wood-filled TPU can be processed very well by injection molding,
    but also that the mechanical properties depend significantly on temperature control
    in the injection-molding process. Moreover, considering the significant reinforcing
    effect of the wood fibers, a good fiber-matrix adhesion can be assumed.</jats:p>
article_number: '316'
author:
- first_name: Elmar
  full_name: Moritzer, Elmar
  last_name: Moritzer
- first_name: Maximilian
  full_name: Richters, Maximilian
  last_name: Richters
citation:
  ama: Moritzer E, Richters M. Injection Molding of Wood-Filled Thermoplastic Polyurethane.
    <i>Journal of Composites Science</i>. 2021;5(12). doi:<a href="https://doi.org/10.3390/jcs5120316">10.3390/jcs5120316</a>
  apa: Moritzer, E., &#38; Richters, M. (2021). Injection Molding of Wood-Filled Thermoplastic
    Polyurethane. <i>Journal of Composites Science</i>, <i>5</i>(12), Article 316.
    <a href="https://doi.org/10.3390/jcs5120316">https://doi.org/10.3390/jcs5120316</a>
  bibtex: '@article{Moritzer_Richters_2021, title={Injection Molding of Wood-Filled
    Thermoplastic Polyurethane}, volume={5}, DOI={<a href="https://doi.org/10.3390/jcs5120316">10.3390/jcs5120316</a>},
    number={12316}, journal={Journal of Composites Science}, publisher={MDPI AG},
    author={Moritzer, Elmar and Richters, Maximilian}, year={2021} }'
  chicago: Moritzer, Elmar, and Maximilian Richters. “Injection Molding of Wood-Filled
    Thermoplastic Polyurethane.” <i>Journal of Composites Science</i> 5, no. 12 (2021).
    <a href="https://doi.org/10.3390/jcs5120316">https://doi.org/10.3390/jcs5120316</a>.
  ieee: 'E. Moritzer and M. Richters, “Injection Molding of Wood-Filled Thermoplastic
    Polyurethane,” <i>Journal of Composites Science</i>, vol. 5, no. 12, Art. no.
    316, 2021, doi: <a href="https://doi.org/10.3390/jcs5120316">10.3390/jcs5120316</a>.'
  mla: Moritzer, Elmar, and Maximilian Richters. “Injection Molding of Wood-Filled
    Thermoplastic Polyurethane.” <i>Journal of Composites Science</i>, vol. 5, no.
    12, 316, MDPI AG, 2021, doi:<a href="https://doi.org/10.3390/jcs5120316">10.3390/jcs5120316</a>.
  short: E. Moritzer, M. Richters, Journal of Composites Science 5 (2021).
date_created: 2022-04-20T07:57:46Z
date_updated: 2022-04-20T08:02:41Z
doi: 10.3390/jcs5120316
intvolume: '         5'
issue: '12'
keyword:
- Engineering (miscellaneous)
- Ceramics and Composites
language:
- iso: eng
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Injection Molding of Wood-Filled Thermoplastic Polyurethane
type: journal_article
user_id: '38221'
volume: 5
year: '2021'
...
---
_id: '31769'
author:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
- first_name: Maximilian
  full_name: Richters, Maximilian
  id: '38221'
  last_name: Richters
citation:
  ama: Moritzer E, Richters M. Injection Molding of Wood-Filled Thermoplastic Polyurethane.
    <i> Journal of  Composites Science</i>. 2021;(12).
  apa: Moritzer, E., &#38; Richters, M. (2021). Injection Molding of Wood-Filled Thermoplastic
    Polyurethane. <i> Journal of  Composites Science</i>, <i>12</i>.
  bibtex: '@article{Moritzer_Richters_2021, title={Injection Molding of Wood-Filled
    Thermoplastic Polyurethane}, number={12}, journal={ Journal of  Composites Science},
    author={Moritzer, Elmar and Richters, Maximilian}, year={2021} }'
  chicago: Moritzer, Elmar, and Maximilian Richters. “Injection Molding of Wood-Filled
    Thermoplastic Polyurethane.” <i> Journal of  Composites Science</i>, no. 12 (2021).
  ieee: E. Moritzer and M. Richters, “Injection Molding of Wood-Filled Thermoplastic
    Polyurethane,” <i> Journal of  Composites Science</i>, no. 12, 2021.
  mla: Moritzer, Elmar, and Maximilian Richters. “Injection Molding of Wood-Filled
    Thermoplastic Polyurethane.” <i> Journal of  Composites Science</i>, no. 12, 2021.
  short: E. Moritzer, M. Richters,  Journal of  Composites Science (2021).
date_created: 2022-06-07T09:50:44Z
date_updated: 2023-05-02T07:04:16Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
issue: '12'
language:
- iso: eng
publication: ' Journal of  Composites Science'
publication_identifier:
  issn:
  - 2504-477X
quality_controlled: '1'
status: public
title: Injection Molding of Wood-Filled Thermoplastic Polyurethane
type: journal_article
user_id: '44116'
year: '2021'
...
---
_id: '20842'
article_number: '143'
article_type: original
author:
- first_name: Tao
  full_name: Wu, Tao
  last_name: Wu
- first_name: Steffen Rainer
  full_name: Tinkloh, Steffen Rainer
  id: '72722'
  last_name: Tinkloh
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Wolfgang
  full_name: Zinn, Wolfgang
  last_name: Zinn
- first_name: Thomas
  full_name: Niendorf, Thomas
  last_name: Niendorf
citation:
  ama: Wu T, Tinkloh SR, Tröster T, Zinn W, Niendorf T. Determination and Validation
    of Residual Stresses in CFRP/Metal Hybrid Components Using the Incremental Hole
    Drilling Method. <i>Journal of Composites Science</i>. Published online 2020.
    doi:<a href="https://doi.org/10.3390/jcs4030143">10.3390/jcs4030143</a>
  apa: Wu, T., Tinkloh, S. R., Tröster, T., Zinn, W., &#38; Niendorf, T. (2020). Determination
    and Validation of Residual Stresses in CFRP/Metal Hybrid Components Using the
    Incremental Hole Drilling Method. <i>Journal of Composites Science</i>, Article
    143. <a href="https://doi.org/10.3390/jcs4030143">https://doi.org/10.3390/jcs4030143</a>
  bibtex: '@article{Wu_Tinkloh_Tröster_Zinn_Niendorf_2020, title={Determination and
    Validation of Residual Stresses in CFRP/Metal Hybrid Components Using the Incremental
    Hole Drilling Method}, DOI={<a href="https://doi.org/10.3390/jcs4030143">10.3390/jcs4030143</a>},
    number={143}, journal={Journal of Composites Science}, author={Wu, Tao and Tinkloh,
    Steffen Rainer and Tröster, Thomas and Zinn, Wolfgang and Niendorf, Thomas}, year={2020}
    }'
  chicago: Wu, Tao, Steffen Rainer Tinkloh, Thomas Tröster, Wolfgang Zinn, and Thomas
    Niendorf. “Determination and Validation of Residual Stresses in CFRP/Metal Hybrid
    Components Using the Incremental Hole Drilling Method.” <i>Journal of Composites
    Science</i>, 2020. <a href="https://doi.org/10.3390/jcs4030143">https://doi.org/10.3390/jcs4030143</a>.
  ieee: 'T. Wu, S. R. Tinkloh, T. Tröster, W. Zinn, and T. Niendorf, “Determination
    and Validation of Residual Stresses in CFRP/Metal Hybrid Components Using the
    Incremental Hole Drilling Method,” <i>Journal of Composites Science</i>, Art.
    no. 143, 2020, doi: <a href="https://doi.org/10.3390/jcs4030143">10.3390/jcs4030143</a>.'
  mla: Wu, Tao, et al. “Determination and Validation of Residual Stresses in CFRP/Metal
    Hybrid Components Using the Incremental Hole Drilling Method.” <i>Journal of Composites
    Science</i>, 143, 2020, doi:<a href="https://doi.org/10.3390/jcs4030143">10.3390/jcs4030143</a>.
  short: T. Wu, S.R. Tinkloh, T. Tröster, W. Zinn, T. Niendorf, Journal of Composites
    Science (2020).
date_created: 2020-12-25T14:08:35Z
date_updated: 2022-04-26T06:35:08Z
department:
- _id: '149'
- _id: '321'
- _id: '9'
doi: 10.3390/jcs4030143
language:
- iso: eng
publication: Journal of Composites Science
publication_identifier:
  issn:
  - 2504-477X
publication_status: published
quality_controlled: '1'
status: public
title: Determination and Validation of Residual Stresses in CFRP/Metal Hybrid Components
  Using the Incremental Hole Drilling Method
type: journal_article
user_id: '72722'
year: '2020'
...