---
_id: '67395'
author:
- first_name: Hayrettin
  full_name: Irmak, Hayrettin
  id: '75657'
  last_name: Irmak
  orcid: https://orcid.org/0009-0009-6267-2957
- 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, Marten T, Tröster T. Analysis of the effect of fibre-prestressing
    on residual stresses in CFRP/steel hybrid components using a micromechanics-based
    finite element simulation with a dehomogenization method. In: <i>ICCS29 - 29th
    International Conference on Composite Structures</i>. ; 2026.'
  apa: Irmak, H., Marten, T., &#38; Tröster, T. (2026). Analysis of the effect of
    fibre-prestressing on residual stresses in CFRP/steel hybrid components using
    a micromechanics-based finite element simulation with a dehomogenization method.
    <i>ICCS29 - 29th International Conference on Composite Structures</i>. ICCS29
    - 29th International Conference on Composite Structures, Cagliari, Italy.
  bibtex: '@inproceedings{Irmak_Marten_Tröster_2026, place={Cagliari, Italy}, title={Analysis
    of the effect of fibre-prestressing on residual stresses in CFRP/steel hybrid
    components using a micromechanics-based finite element simulation with a dehomogenization
    method}, booktitle={ICCS29 - 29th International Conference on Composite Structures},
    author={Irmak, Hayrettin and Marten, Thorsten and Tröster, Thomas}, year={2026}
    }'
  chicago: Irmak, Hayrettin, Thorsten Marten, and Thomas Tröster. “Analysis of the
    Effect of Fibre-Prestressing on Residual Stresses in CFRP/Steel Hybrid Components
    Using a Micromechanics-Based Finite Element Simulation with a Dehomogenization
    Method.” In <i>ICCS29 - 29th International Conference on Composite Structures</i>.
    Cagliari, Italy, 2026.
  ieee: H. Irmak, T. Marten, and T. Tröster, “Analysis of the effect of fibre-prestressing
    on residual stresses in CFRP/steel hybrid components using a micromechanics-based
    finite element simulation with a dehomogenization method,” presented at the ICCS29
    - 29th International Conference on Composite Structures, Cagliari, Italy, 2026.
  mla: Irmak, Hayrettin, et al. “Analysis of the Effect of Fibre-Prestressing on Residual
    Stresses in CFRP/Steel Hybrid Components Using a Micromechanics-Based Finite Element
    Simulation with a Dehomogenization Method.” <i>ICCS29 - 29th International Conference
    on Composite Structures</i>, 2026.
  short: 'H. Irmak, T. Marten, T. Tröster, in: ICCS29 - 29th International Conference
    on Composite Structures, Cagliari, Italy, 2026.'
conference:
  end_date: 2026-06-26
  location: Cagliari, Italy
  name: ICCS29 - 29th International Conference on Composite Structures
  start_date: 2026-06-22
date_created: 2026-10-05T09:39:49Z
date_updated: 2026-10-05T09:49:44Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
keyword:
- fibre-prestressing
- residual stresses
- process simulation
- prepreg
- dehomogenization method
language:
- iso: eng
place: Cagliari, Italy
publication: ICCS29 - 29th International Conference on Composite Structures
status: public
title: Analysis of the effect of fibre-prestressing on residual stresses in CFRP/steel
  hybrid components using a micromechanics-based finite element simulation with a
  dehomogenization method
type: conference_abstract
user_id: '75657'
year: '2026'
...
---
_id: '67396'
author:
- first_name: Hayrettin
  full_name: Irmak, Hayrettin
  id: '75657'
  last_name: Irmak
  orcid: https://orcid.org/0009-0009-6267-2957
- 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, Marten T, Tröster T. The investigation of residual stress distribution
    in metal-CFRP hybrid structures produced by the developed fiber pre-tensioning
    tool concept. In: <i>RSMSE 2026 - Residual Stress in Materials Science and Engineering</i>.
    ; 2026.'
  apa: Irmak, H., Marten, T., &#38; Tröster, T. (2026). The investigation of residual
    stress distribution in metal-CFRP hybrid structures produced by the developed
    fiber pre-tensioning tool concept. <i>RSMSE 2026 - Residual Stress in Materials
    Science and Engineering</i>. RSMSE 2026 - Residual Stress in Materials Science
    and Engineering, Kassel, Germany.
  bibtex: '@inproceedings{Irmak_Marten_Tröster_2026, place={Kassel, Germany}, title={The
    investigation of residual stress distribution in metal-CFRP hybrid structures
    produced by the developed fiber pre-tensioning tool concept}, booktitle={RSMSE
    2026 - Residual Stress in Materials Science and Engineering}, author={Irmak, Hayrettin
    and Marten, Thorsten and Tröster, Thomas}, year={2026} }'
  chicago: Irmak, Hayrettin, Thorsten Marten, and Thomas Tröster. “The Investigation
    of Residual Stress Distribution in Metal-CFRP Hybrid Structures Produced by the
    Developed Fiber Pre-Tensioning Tool Concept.” In <i>RSMSE 2026 - Residual Stress
    in Materials Science and Engineering</i>. Kassel, Germany, 2026.
  ieee: H. Irmak, T. Marten, and T. Tröster, “The investigation of residual stress
    distribution in metal-CFRP hybrid structures produced by the developed fiber pre-tensioning
    tool concept,” presented at the RSMSE 2026 - Residual Stress in Materials Science
    and Engineering, Kassel, Germany, 2026.
  mla: Irmak, Hayrettin, et al. “The Investigation of Residual Stress Distribution
    in Metal-CFRP Hybrid Structures Produced by the Developed Fiber Pre-Tensioning
    Tool Concept.” <i>RSMSE 2026 - Residual Stress in Materials Science and Engineering</i>,
    2026.
  short: 'H. Irmak, T. Marten, T. Tröster, in: RSMSE 2026 - Residual Stress in Materials
    Science and Engineering, Kassel, Germany, 2026.'
conference:
  end_date: 2026-06-25
  location: Kassel, Germany
  name: RSMSE 2026 - Residual Stress in Materials Science and Engineering
  start_date: 2026-06-23
date_created: 2026-10-05T09:49:24Z
date_updated: 2026-10-05T09:51:12Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
keyword:
- fibre-prestressing
- residual stresses
- hybrid structures
language:
- iso: eng
place: Kassel, Germany
publication: RSMSE 2026 - Residual Stress in Materials Science and Engineering
status: public
title: The investigation of residual stress distribution in metal-CFRP hybrid structures
  produced by the developed fiber pre-tensioning tool concept
type: conference_abstract
user_id: '75657'
year: '2026'
...
---
_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'
...