---
_id: '64985'
abstract:
- lang: eng
  text: Modern industrial development has necessitated a wide range of joining technologies.
    Self-pierce riveting has become a prevalent technique for sheet metal assembly,
    especially in automotive applications. Achieving proper joint geometry and adequate
    load-bearing capacity depends on appropriate tool selection and precise process
    control. Material properties and condition also play a significant role in process
    performance. To accommodate the inevitable variations in component characteristics
    during production, a robust and stable joining process is essential. The study
    focuses on investigating the influence of preformed joining partners on the joining
    process and the joint's load capacity. An EN AW-6014 in T4 condition, as well
    as an HCT590X, are used as materials for this study. For this purpose, an exemplary
    process chain consisting of the steps of performing, joining, and shear load testing
    is studied. Each process step is implemented using an FE model to predict the
    outcome of subsequent steps. For analysis of the influence of pre-strain, an optimisation
    software is used to plan and execute variations of the process. These variations
    are used to create a meta-model that can describe the relationships between pre-forming
    and characteristic parameters of subsequent process steps. The resulting model
    is validated by comparing simulation and experimental data. Finally, in a novel
    approach, the robustness of the presented process chain is analyzed in terms of
    a tolerable performance level for the joining partners.
article_number: '100391'
author:
- first_name: Jean-Patrick
  full_name: Ludwig, Jean-Patrick
  id: '76631'
  last_name: Ludwig
- first_name: Emil
  full_name: Tolke, Emil
  last_name: Tolke
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- 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: Ludwig J-P, Tolke E, Schlichter MC, Bobbert M, Meschut G. Numerical analysis
    of the robustness of self-pierce riveting with pre-formed joining partners. <i>Journal
    of Advanced Joining Processes</i>. 2026;13. doi:<a href="https://doi.org/10.1016/j.jajp.2026.100391">10.1016/j.jajp.2026.100391</a>
  apa: Ludwig, J.-P., Tolke, E., Schlichter, M. C., Bobbert, M., &#38; Meschut, G.
    (2026). Numerical analysis of the robustness of self-pierce riveting with pre-formed
    joining partners. <i>Journal of Advanced Joining Processes</i>, <i>13</i>, Article
    100391. <a href="https://doi.org/10.1016/j.jajp.2026.100391">https://doi.org/10.1016/j.jajp.2026.100391</a>
  bibtex: '@article{Ludwig_Tolke_Schlichter_Bobbert_Meschut_2026, title={Numerical
    analysis of the robustness of self-pierce riveting with pre-formed joining partners},
    volume={13}, DOI={<a href="https://doi.org/10.1016/j.jajp.2026.100391">10.1016/j.jajp.2026.100391</a>},
    number={100391}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
    BV}, author={Ludwig, Jean-Patrick and Tolke, Emil and Schlichter, Malte Christian
    and Bobbert, Mathias and Meschut, Gerson}, year={2026} }'
  chicago: Ludwig, Jean-Patrick, Emil Tolke, Malte Christian Schlichter, Mathias Bobbert,
    and Gerson Meschut. “Numerical Analysis of the Robustness of Self-Pierce Riveting
    with Pre-Formed Joining Partners.” <i>Journal of Advanced Joining Processes</i>
    13 (2026). <a href="https://doi.org/10.1016/j.jajp.2026.100391">https://doi.org/10.1016/j.jajp.2026.100391</a>.
  ieee: 'J.-P. Ludwig, E. Tolke, M. C. Schlichter, M. Bobbert, and G. Meschut, “Numerical
    analysis of the robustness of self-pierce riveting with pre-formed joining partners,”
    <i>Journal of Advanced Joining Processes</i>, vol. 13, Art. no. 100391, 2026,
    doi: <a href="https://doi.org/10.1016/j.jajp.2026.100391">10.1016/j.jajp.2026.100391</a>.'
  mla: Ludwig, Jean-Patrick, et al. “Numerical Analysis of the Robustness of Self-Pierce
    Riveting with Pre-Formed Joining Partners.” <i>Journal of Advanced Joining Processes</i>,
    vol. 13, 100391, Elsevier BV, 2026, doi:<a href="https://doi.org/10.1016/j.jajp.2026.100391">10.1016/j.jajp.2026.100391</a>.
  short: J.-P. Ludwig, E. Tolke, M.C. Schlichter, M. Bobbert, G. Meschut, Journal
    of Advanced Joining Processes 13 (2026).
date_created: 2026-03-16T12:30:39Z
date_updated: 2026-03-16T12:38:13Z
department:
- _id: '9'
doi: 10.1016/j.jajp.2026.100391
intvolume: '        13'
keyword:
- Self-pierce riveting
- FE modelling
- Plastic pre-deformation
- Meta modelling
language:
- iso: eng
project:
- _id: '131'
  name: TRR 285 - Project Area A
- _id: '135'
  name: TRR 285 - Subproject A01
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Journal of Advanced Joining Processes
publication_identifier:
  issn:
  - 2666-3309
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Numerical analysis of the robustness of self-pierce riveting with pre-formed
  joining partners
type: journal_article
user_id: '76631'
volume: 13
year: '2026'
...
---
_id: '59872'
abstract:
- lang: eng
  text: Lightweight design is a driving concept in modern automotive engineering to
    minimize resource consumption over a vehicle's lifecycle through multi-material
    design, which relies on the use of joining techniques in car body fabrication.
    Multi-material design and the increasing trend towards producing large structural
    components using the megacasting process pose considerable challenges, particularly
    in the mechanical joining of aluminium-silicon (AlSi) castings. These castings
    typically exhibit low ductility and are prone to cracking when mechanically joined.
    Based on the excellent castability of hypoeutectic AlSi alloys, these are applied
    in sand casting and die casting as well as in megacasting. With a silicon content
    between 7 wt% and 12 wt%, these AlSi-alloys have a plate-like silicon phase that
    initiates cracks during mechanical joining. To enhance the joinability of castings,
    the research hypothesis is that improved solidification conditions enable a significant
    modification in the microstructure and therefore, increase the mechanical properties.
    During the manufacture of the castings using the sand casting process, the solidification
    conditions within the structural elements are varied to modify the microstructure
    to obtain castings with graded microstructure. The castings are evaluated using
    mechanical, microstructural and joining testing methods and finally, a microstructure-joinability
    correlation is established.
article_number: '01081'
article_type: original
author:
- first_name: Moritz
  full_name: Neuser, Moritz
  id: '32340'
  last_name: Neuser
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- 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
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Neuser M, Schlichter MC, Hoyer K-P, Bobbert M, Meschut G, Schaper M. Mechanical
    joinability of microstructurally graded structural components manufactured from
    hypoeutectic aluminium casting alloys. <i>44th Conference of the International
    Deep Drawing Research Group (IDDRG 2025)</i>. 2025;408. doi:<a href="https://doi.org/10.1051/matecconf/202540801081">10.1051/matecconf/202540801081</a>
  apa: Neuser, M., Schlichter, M. C., Hoyer, K.-P., Bobbert, M., Meschut, G., &#38;
    Schaper, M. (2025). Mechanical joinability of microstructurally graded structural
    components manufactured from hypoeutectic aluminium casting alloys. <i>44th Conference
    of the International Deep Drawing Research Group (IDDRG 2025)</i>, <i>408</i>,
    Article 01081. <a href="https://doi.org/10.1051/matecconf/202540801081">https://doi.org/10.1051/matecconf/202540801081</a>
  bibtex: '@article{Neuser_Schlichter_Hoyer_Bobbert_Meschut_Schaper_2025, title={Mechanical
    joinability of microstructurally graded structural components manufactured from
    hypoeutectic aluminium casting alloys}, volume={408}, DOI={<a href="https://doi.org/10.1051/matecconf/202540801081">10.1051/matecconf/202540801081</a>},
    number={01081}, journal={44th Conference of the International Deep Drawing Research
    Group (IDDRG 2025)}, author={Neuser, Moritz and Schlichter, Malte Christian and
    Hoyer, Kay-Peter and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko},
    year={2025} }'
  chicago: Neuser, Moritz, Malte Christian Schlichter, Kay-Peter Hoyer, Mathias Bobbert,
    Gerson Meschut, and Mirko Schaper. “Mechanical Joinability of Microstructurally
    Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting
    Alloys.” <i>44th Conference of the International Deep Drawing Research Group (IDDRG
    2025)</i> 408 (2025). <a href="https://doi.org/10.1051/matecconf/202540801081">https://doi.org/10.1051/matecconf/202540801081</a>.
  ieee: 'M. Neuser, M. C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, and M.
    Schaper, “Mechanical joinability of microstructurally graded structural components
    manufactured from hypoeutectic aluminium casting alloys,” <i>44th Conference of
    the International Deep Drawing Research Group (IDDRG 2025)</i>, vol. 408, Art.
    no. 01081, 2025, doi: <a href="https://doi.org/10.1051/matecconf/202540801081">10.1051/matecconf/202540801081</a>.'
  mla: Neuser, Moritz, et al. “Mechanical Joinability of Microstructurally Graded
    Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.”
    <i>44th Conference of the International Deep Drawing Research Group (IDDRG 2025)</i>,
    vol. 408, 01081, 2025, doi:<a href="https://doi.org/10.1051/matecconf/202540801081">10.1051/matecconf/202540801081</a>.
  short: M. Neuser, M.C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, M. Schaper,
    44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
    408 (2025).
conference:
  end_date: 2025-06-05
  location: Lissabon (Portugal)
  name: 44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
  start_date: 2025-06-02
date_created: 2025-05-12T15:21:06Z
date_updated: 2026-02-24T13:41:58Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '9'
- _id: '321'
doi: 10.1051/matecconf/202540801081
intvolume: '       408'
keyword:
- Joining
- Casting
- Self-pierce riveting
- Aluminium casting alloy
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: "\thttps://doi.org/10.1051/matecconf/202540801081"
oa: '1'
project:
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '136'
  name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: 44th Conference of the International Deep Drawing Research Group (IDDRG
  2025)
publication_status: published
quality_controlled: '1'
status: public
title: Mechanical joinability of microstructurally graded structural components manufactured
  from hypoeutectic aluminium casting alloys
type: journal_article
user_id: '7850'
volume: 408
year: '2025'
...
---
_id: '59878'
abstract:
- lang: eng
  text: <jats:p>Abstract. In the development of advanced lightweight automotive solutions,
    self-piercing riveting (SPR) offers the possibility of joining multi-material
    structures to fulfil a wide variety of requirements. With regard to the entire
    process chain, production-related pre-deformations of the parts to be joined can
    influence the geometric shape and load capacity of SPR joints. Various studies
    have investigated the influence of pre-stretched sheet materials, in the sense
    of pre-drawing processes, on the formation of SPR joints. The impact of pre-stretching
    sheet metals on the formation of their geometrical characteristics and the shear-tensile
    strength of SPR processes was observed [1]. Pre-rolled semi-finished products
    are also joined together in mixed material automotive structures, e.g. tailor
    rolled blanks. This work aims to investigate the influence of pre-rolled joining
    parts on the geometric formation and load-carrying capacity of SPR joints. For
    this purpose, sheets of metal are cold-formed using a rolling process to induce
    a defined strain-hardening state in the material and then joined in various combinations.
    As the degree of deformation increases, the rolling of samples can lead to minimal
    accumulation of damage in the sheet materials, which can influence the joint behaviour.
    The rolling process, as well as the subsequent joining process, are also investigated
    by FEM. The influence of pre-rolled semi-finished products on the strength of
    the SPR joints is investigated.</jats:p>
author:
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Özcan
  full_name: Harabati, Özcan
  last_name: Harabati
- first_name: Jean-Patrick
  full_name: Ludwig, Jean-Patrick
  id: '76631'
  last_name: Ludwig
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation
    of the influence of rolling-induced sheet metal deformation on SPR joints. In:
    <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025.
    doi:<a href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>'
  apa: Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R.,
    Bobbert, M., &#38; Meschut, G. (2025). Experimental and numerical investigation
    of the influence of rolling-induced sheet metal deformation on SPR joints. <i>Materials
    Research Proceedings</i>, <i>54</i>. <a href="https://doi.org/10.21741/9781644903599-148">https://doi.org/10.21741/9781644903599-148</a>
  bibtex: '@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025,
    place={Paestum}, title={Experimental and numerical investigation of the influence
    of rolling-induced sheet metal deformation on SPR joints}, volume={54}, DOI={<a
    href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>},
    booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
    LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick
    and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut,
    Gerson}, year={2025} }'
  chicago: 'Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max
    Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental
    and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation
    on SPR Joints.” In <i>Materials Research Proceedings</i>, Vol. 54. Paestum: Materials
    Research Forum LLC, 2025. <a href="https://doi.org/10.21741/9781644903599-148">https://doi.org/10.21741/9781644903599-148</a>.'
  ieee: 'M. C. Schlichter <i>et al.</i>, “Experimental and numerical investigation
    of the influence of rolling-induced sheet metal deformation on SPR joints,” in
    <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>.'
  mla: Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation
    of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” <i>Materials
    Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a
    href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>.
  short: 'M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert,
    G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
    Paestum, 2025.'
date_created: 2025-05-13T06:54:20Z
date_updated: 2026-02-24T13:42:57Z
department:
- _id: '157'
doi: 10.21741/9781644903599-148
intvolume: '        54'
language:
- iso: eng
place: Paestum
project:
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
  issn:
  - 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Experimental and numerical investigation of the influence of rolling-induced
  sheet metal deformation on SPR joints
type: conference
user_id: '7850'
volume: 54
year: '2025'
...
---
_id: '60977'
abstract:
- lang: eng
  text: In the development of advanced lightweight automotive solutions, self-piercing
    riveting (SPR) offers the possibility of joining multi-material structures to
    fulfil a wide variety of requirements. With regard to the entire process chain,
    production-related pre-deformations of the parts to be joined can influence the
    geometric shape and load capacity of SPR joints. Various studies have investigated
    the influence of pre-stretched sheet materials, in the sense of pre-drawing processes,
    on the formation of SPR joints. The impact of pre-stretching sheet metals on the
    formation of their geometrical characteristics and the shear-tensile strength
    of SPR processes was observed [1]. Pre-rolled semi-finished products are also
    joined together in mixed material automotive structures, e.g. tailor rolled blanks.
    This work aims to investigate the influence of pre-rolled joining parts on the
    geometric formation and load-carrying capacity of SPR joints. For this purpose,
    sheets of metal are cold-formed using a rolling process to induce a defined strain-hardening
    state in the material and then joined in various combinations. As the degree of
    deformation increases, the rolling of samples can lead to minimal accumulation
    of damage in the sheet materials, which can influence the joint behaviour. The
    rolling process, as well as the subsequent joining process, are also investigated
    by FEM. The influence of pre-rolled semi-finished products on the strength of
    the SPR joints is investigated.</jats:p>
author:
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Özcan
  full_name: Harabati, Özcan
  id: '54972'
  last_name: Harabati
- first_name: Jean-Patrick
  full_name: Ludwig, Jean-Patrick
  id: '76631'
  last_name: Ludwig
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation
    of the influence of rolling-induced sheet metal deformation on SPR joints. In:
    <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025.
    doi:<a href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>'
  apa: Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R.,
    Bobbert, M., &#38; Meschut, G. (2025). Experimental and numerical investigation
    of the influence of rolling-induced sheet metal deformation on SPR joints. <i>Materials
    Research Proceedings</i>, <i>54</i>. <a href="https://doi.org/10.21741/9781644903599-148">https://doi.org/10.21741/9781644903599-148</a>
  bibtex: '@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025,
    title={Experimental and numerical investigation of the influence of rolling-induced
    sheet metal deformation on SPR joints}, volume={54}, DOI={<a href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>},
    booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
    LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick
    and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut,
    Gerson}, year={2025} }'
  chicago: Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max Böhnke,
    Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental and
    Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation
    on SPR Joints.” In <i>Materials Research Proceedings</i>, Vol. 54. Materials Research
    Forum LLC, 2025. <a href="https://doi.org/10.21741/9781644903599-148">https://doi.org/10.21741/9781644903599-148</a>.
  ieee: 'M. C. Schlichter <i>et al.</i>, “Experimental and numerical investigation
    of the influence of rolling-induced sheet metal deformation on SPR joints,” in
    <i>Materials Research Proceedings</i>, 2025, vol. 54, doi: <a href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>.'
  mla: Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation
    of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” <i>Materials
    Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a
    href="https://doi.org/10.21741/9781644903599-148">10.21741/9781644903599-148</a>.
  short: 'M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert,
    G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
    2025.'
date_created: 2025-08-22T10:20:15Z
date_updated: 2026-02-24T14:02:01Z
department:
- _id: '157'
doi: 10.21741/9781644903599-148
intvolume: '        54'
language:
- iso: eng
project:
- _id: '135'
  name: TRR 285 - Subproject A01
- _id: '131'
  name: TRR 285 - Project Area A
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
  issn:
  - 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Experimental and numerical investigation of the influence of rolling-induced
  sheet metal deformation on SPR joints
type: conference
user_id: '7850'
volume: 54
year: '2025'
...
---
_id: '60978'
abstract:
- lang: eng
  text: The present study is an experimental analysis of the influence of pre-forming
    on the failure behaviour of clinched specimens under quasi-static and cyclic loading
    conditions. In this context, the geometric formation of the clinched joints is
    taken into account, with regard to the loading behaviour. The study also includes
    a comparison of the failure behaviour of quasi-static and cyclic tested specimen.
    Testing is done on non-pre-deformed and pre-deformed specimens. For this purpose,
    experimental investigations are carried out on two material combinations consisting
    of HCT590X steel sheet and EN AW-6014 T4 aluminium sheet. The focus is on the
    fatigue analysis of the clinched joints. The aim is to identify the failure modes
    under cyclic loading and the crack formation with regard to forming operations
    prior to the joining process. The investigations show that the cyclic load-bearing
    behaviour of the HCT590X joints is reduced by introducing a plastic pre-deformation
    of the to be joined parts.</jats:p>
author:
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Özcan
  full_name: Harabati, Özcan
  id: '54972'
  last_name: Harabati
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  last_name: Meschut
citation:
  ama: 'Schlichter MC, Harabati Ö, Böhnke M, Bielak CR, Bobbert M, Meschut G. Investigation
    on manufacturing-induced pre-deformation on the fatigue behaviour of clinched
    joints. In: <i>Materials Research Proceedings</i>. Vol 52. Materials Research
    Forum LLC; 2025. doi:<a href="https://doi.org/10.21741/9781644903551-16">10.21741/9781644903551-16</a>'
  apa: Schlichter, M. C., Harabati, Ö., Böhnke, M., Bielak, C. R., Bobbert, M., &#38;
    Meschut, G. (2025). Investigation on manufacturing-induced pre-deformation on
    the fatigue behaviour of clinched joints. <i>Materials Research Proceedings</i>,
    <i>52</i>. <a href="https://doi.org/10.21741/9781644903551-16">https://doi.org/10.21741/9781644903551-16</a>
  bibtex: '@inproceedings{Schlichter_Harabati_Böhnke_Bielak_Bobbert_Meschut_2025,
    title={Investigation on manufacturing-induced pre-deformation on the fatigue behaviour
    of clinched joints}, volume={52}, DOI={<a href="https://doi.org/10.21741/9781644903551-16">10.21741/9781644903551-16</a>},
    booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
    LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Böhnke, Max
    and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2025}
    }'
  chicago: Schlichter, Malte Christian, Özcan Harabati, Max Böhnke, Christian Roman
    Bielak, Mathias Bobbert, and Gerson Meschut. “Investigation on Manufacturing-Induced
    Pre-Deformation on the Fatigue Behaviour of Clinched Joints.” In <i>Materials
    Research Proceedings</i>, Vol. 52. Materials Research Forum LLC, 2025. <a href="https://doi.org/10.21741/9781644903551-16">https://doi.org/10.21741/9781644903551-16</a>.
  ieee: 'M. C. Schlichter, Ö. Harabati, M. Böhnke, C. R. Bielak, M. Bobbert, and G.
    Meschut, “Investigation on manufacturing-induced pre-deformation on the fatigue
    behaviour of clinched joints,” in <i>Materials Research Proceedings</i>, 2025,
    vol. 52, doi: <a href="https://doi.org/10.21741/9781644903551-16">10.21741/9781644903551-16</a>.'
  mla: Schlichter, Malte Christian, et al. “Investigation on Manufacturing-Induced
    Pre-Deformation on the Fatigue Behaviour of Clinched Joints.” <i>Materials Research
    Proceedings</i>, vol. 52, Materials Research Forum LLC, 2025, doi:<a href="https://doi.org/10.21741/9781644903551-16">10.21741/9781644903551-16</a>.
  short: 'M.C. Schlichter, Ö. Harabati, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut,
    in: Materials Research Proceedings, Materials Research Forum LLC, 2025.'
date_created: 2025-08-22T10:45:56Z
date_updated: 2026-02-24T14:02:35Z
department:
- _id: '157'
doi: 10.21741/9781644903551-16
intvolume: '        52'
language:
- iso: eng
project:
- _id: '131'
  name: TRR 285 - Project Area A
- _id: '135'
  name: TRR 285 - Subproject A01
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
  issn:
  - 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Investigation on manufacturing-induced pre-deformation on the fatigue behaviour
  of clinched joints
type: conference
user_id: '7850'
volume: 52
year: '2025'
...
---
_id: '59587'
abstract:
- lang: eng
  text: Abstract. As a widely used sheet metal in clinched joints within the automotive
    industry, the aluminum alloy EN AW-6014 has been the focus of numerous studies.
    High-cycle fatigue (HCF) is a critical aspect when assessing the durability of
    clinched joints. In the present work, the HCF behavior of EN AW-6014 T4 was explored
    both experimentally and numerically. To model the fatigue behavior, Lemaitre’s
    two-scale damage model was used. Two key parameters, damage strength and damage
    exponent, are necessary for numerical investigations of HCF behavior. These parameters
    were determined through experiments with flat specimens and subsequently validated
    within a numerical model of clinched joints. The numerical results for fatigue
    match the experimental ones of the clinched joints quite well.</jats:p>
author:
- first_name: Chin
  full_name: Chen, Chin
  last_name: Chen
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Sven
  full_name: Harzheim, Sven
  last_name: Harzheim
- first_name: Martin
  full_name: Hofmann, Martin
  last_name: Hofmann
- 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
- first_name: Thomas
  full_name: Wallmersperger, Thomas
  last_name: Wallmersperger
citation:
  ama: 'Chen C, Schlichter MC, Harzheim S, et al. High-cycle fatigue testing and parameter
    identification for numerical simulation of aluminum alloy EN AW-6014. In: <i>Materials
    Research Proceedings</i>. Vol 52. Materials Research Forum LLC; 2025. doi:<a href="https://doi.org/10.21741/9781644903551-23">10.21741/9781644903551-23</a>'
  apa: Chen, C., Schlichter, M. C., Harzheim, S., Hofmann, M., Bobbert, M., Meschut,
    G., &#38; Wallmersperger, T. (2025). High-cycle fatigue testing and parameter
    identification for numerical simulation of aluminum alloy EN AW-6014. <i>Materials
    Research Proceedings</i>, <i>52</i>. <a href="https://doi.org/10.21741/9781644903551-23">https://doi.org/10.21741/9781644903551-23</a>
  bibtex: '@inproceedings{Chen_Schlichter_Harzheim_Hofmann_Bobbert_Meschut_Wallmersperger_2025,
    title={High-cycle fatigue testing and parameter identification for numerical simulation
    of aluminum alloy EN AW-6014}, volume={52}, DOI={<a href="https://doi.org/10.21741/9781644903551-23">10.21741/9781644903551-23</a>},
    booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
    LLC}, author={Chen, Chin and Schlichter, Malte Christian and Harzheim, Sven and
    Hofmann, Martin and Bobbert, Mathias and Meschut, Gerson and Wallmersperger, Thomas},
    year={2025} }'
  chicago: Chen, Chin, Malte Christian Schlichter, Sven Harzheim, Martin Hofmann,
    Mathias Bobbert, Gerson Meschut, and Thomas Wallmersperger. “High-Cycle Fatigue
    Testing and Parameter Identification for Numerical Simulation of Aluminum Alloy
    EN AW-6014.” In <i>Materials Research Proceedings</i>, Vol. 52. Materials Research
    Forum LLC, 2025. <a href="https://doi.org/10.21741/9781644903551-23">https://doi.org/10.21741/9781644903551-23</a>.
  ieee: 'C. Chen <i>et al.</i>, “High-cycle fatigue testing and parameter identification
    for numerical simulation of aluminum alloy EN AW-6014,” in <i>Materials Research
    Proceedings</i>, 2025, vol. 52, doi: <a href="https://doi.org/10.21741/9781644903551-23">10.21741/9781644903551-23</a>.'
  mla: Chen, Chin, et al. “High-Cycle Fatigue Testing and Parameter Identification
    for Numerical Simulation of Aluminum Alloy EN AW-6014.” <i>Materials Research
    Proceedings</i>, vol. 52, Materials Research Forum LLC, 2025, doi:<a href="https://doi.org/10.21741/9781644903551-23">10.21741/9781644903551-23</a>.
  short: 'C. Chen, M.C. Schlichter, S. Harzheim, M. Hofmann, M. Bobbert, G. Meschut,
    T. Wallmersperger, in: Materials Research Proceedings, Materials Research Forum
    LLC, 2025.'
date_created: 2025-04-15T11:14:53Z
date_updated: 2026-02-24T13:43:56Z
department:
- _id: '157'
doi: 10.21741/9781644903551-23
intvolume: '        52'
language:
- iso: eng
project:
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
  issn:
  - 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: High-cycle fatigue testing and parameter identification for numerical simulation
  of aluminum alloy EN AW-6014
type: conference
user_id: '7850'
volume: 52
year: '2025'
...
---
_id: '60002'
abstract:
- lang: eng
  text: This study focuses on damage modeling across different mechanical joining
    processes within a process chain, specifically using clinching and self-pierce
    riveting (SPR). The aim is to apply a comprehensive model that captures the damage
    mechanisms and interactions in these technologies, optimizing them for enhanced
    performance and durability of aluminum joints. A GISSMO damage model was utilized,
    based on the stress states occurring during the joining process and a newly introduced
    damage testing method. This model was applied to both clinching and SPR processes.
    A detailed analysis of the stress states provided insights into their effect on
    the material. By incorporating these insights into the GISSMO model, improved
    accuracy in damage prediction was achieved. The model's application to clinching
    and SPR demonstrated its effectiveness in optimizing aluminum joint performance
    and durability, ensuring that the processes can be finely tuned to minimize damage
    and enhance joint quality.</jats:p>
author:
- first_name: Özcan
  full_name: Harabati, Özcan
  id: '54972'
  last_name: Harabati
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Marc
  full_name: Brockmeier, Marc
  last_name: Brockmeier
- 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: 'Harabati Ö, Bielak CR, Böhnke M, et al. Cross-process damage modeling: A process-chain
    case study of clinching and self-pierced riveting for aluminum connections. In:
    <i>Materials Research Proceedings</i>. Vol 52. Materials Research Forum LLC; 2025.
    doi:<a href="https://doi.org/10.21741/9781644903551-19">10.21741/9781644903551-19</a>'
  apa: 'Harabati, Ö., Bielak, C. R., Böhnke, M., Schlichter, M. C., Brockmeier, M.,
    Bobbert, M., &#38; Meschut, G. (2025). Cross-process damage modeling: A process-chain
    case study of clinching and self-pierced riveting for aluminum connections. <i>Materials
    Research Proceedings</i>, <i>52</i>. <a href="https://doi.org/10.21741/9781644903551-19">https://doi.org/10.21741/9781644903551-19</a>'
  bibtex: '@inproceedings{Harabati_Bielak_Böhnke_Schlichter_Brockmeier_Bobbert_Meschut_2025,
    title={Cross-process damage modeling: A process-chain case study of clinching
    and self-pierced riveting for aluminum connections}, volume={52}, DOI={<a href="https://doi.org/10.21741/9781644903551-19">10.21741/9781644903551-19</a>},
    booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
    LLC}, author={Harabati, Özcan and Bielak, Christian Roman and Böhnke, Max and
    Schlichter, Malte Christian and Brockmeier, Marc and Bobbert, Mathias and Meschut,
    Gerson}, year={2025} }'
  chicago: 'Harabati, Özcan, Christian Roman Bielak, Max Böhnke, Malte Christian Schlichter,
    Marc Brockmeier, Mathias Bobbert, and Gerson Meschut. “Cross-Process Damage Modeling:
    A Process-Chain Case Study of Clinching and Self-Pierced Riveting for Aluminum
    Connections.” In <i>Materials Research Proceedings</i>, Vol. 52. Materials Research
    Forum LLC, 2025. <a href="https://doi.org/10.21741/9781644903551-19">https://doi.org/10.21741/9781644903551-19</a>.'
  ieee: 'Ö. Harabati <i>et al.</i>, “Cross-process damage modeling: A process-chain
    case study of clinching and self-pierced riveting for aluminum connections,” in
    <i>Materials Research Proceedings</i>, 2025, vol. 52, doi: <a href="https://doi.org/10.21741/9781644903551-19">10.21741/9781644903551-19</a>.'
  mla: 'Harabati, Özcan, et al. “Cross-Process Damage Modeling: A Process-Chain Case
    Study of Clinching and Self-Pierced Riveting for Aluminum Connections.” <i>Materials
    Research Proceedings</i>, vol. 52, Materials Research Forum LLC, 2025, doi:<a
    href="https://doi.org/10.21741/9781644903551-19">10.21741/9781644903551-19</a>.'
  short: 'Ö. Harabati, C.R. Bielak, M. Böhnke, M.C. Schlichter, M. Brockmeier, M.
    Bobbert, G. Meschut, in: Materials Research Proceedings, Materials Research Forum
    LLC, 2025.'
date_created: 2025-05-20T12:50:34Z
date_updated: 2026-02-24T13:59:43Z
doi: 10.21741/9781644903551-19
intvolume: '        52'
language:
- iso: eng
project:
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
  issn:
  - 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: 'Cross-process damage modeling: A process-chain case study of clinching and
  self-pierced riveting for aluminum connections'
type: conference
user_id: '7850'
volume: 52
year: '2025'
...
---
_id: '59584'
article_number: '100299'
author:
- first_name: Johannes
  full_name: Friedlein, Johannes
  last_name: Friedlein
- first_name: Stephan
  full_name: Lüder, Stephan
  last_name: Lüder
- first_name: Jan
  full_name: Kalich, Jan
  last_name: Kalich
- first_name: Hans Christian
  full_name: Schmale, Hans Christian
  last_name: Schmale
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- 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
- first_name: Paul
  full_name: Steinmann, Paul
  last_name: Steinmann
- first_name: Julia
  full_name: Mergheim, Julia
  last_name: Mergheim
citation:
  ama: Friedlein J, Lüder S, Kalich J, et al. Application of stress-state-dependent
    ductile damage and failure model to clinch joining for a wide range of tool and
    material combinations. <i>Journal of Advanced Joining Processes</i>. 2025;11.
    doi:<a href="https://doi.org/10.1016/j.jajp.2025.100299">10.1016/j.jajp.2025.100299</a>
  apa: Friedlein, J., Lüder, S., Kalich, J., Schmale, H. C., Böhnke, M., Schlichter,
    M. C., Bobbert, M., Meschut, G., Steinmann, P., &#38; Mergheim, J. (2025). Application
    of stress-state-dependent ductile damage and failure model to clinch joining for
    a wide range of tool and material combinations. <i>Journal of Advanced Joining
    Processes</i>, <i>11</i>, Article 100299. <a href="https://doi.org/10.1016/j.jajp.2025.100299">https://doi.org/10.1016/j.jajp.2025.100299</a>
  bibtex: '@article{Friedlein_Lüder_Kalich_Schmale_Böhnke_Schlichter_Bobbert_Meschut_Steinmann_Mergheim_2025,
    title={Application of stress-state-dependent ductile damage and failure model
    to clinch joining for a wide range of tool and material combinations}, volume={11},
    DOI={<a href="https://doi.org/10.1016/j.jajp.2025.100299">10.1016/j.jajp.2025.100299</a>},
    number={100299}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
    BV}, author={Friedlein, Johannes and Lüder, Stephan and Kalich, Jan and Schmale,
    Hans Christian and Böhnke, Max and Schlichter, Malte Christian and Bobbert, Mathias
    and Meschut, Gerson and Steinmann, Paul and Mergheim, Julia}, year={2025} }'
  chicago: Friedlein, Johannes, Stephan Lüder, Jan Kalich, Hans Christian Schmale,
    Max Böhnke, Malte Christian Schlichter, Mathias Bobbert, Gerson Meschut, Paul
    Steinmann, and Julia Mergheim. “Application of Stress-State-Dependent Ductile
    Damage and Failure Model to Clinch Joining for a Wide Range of Tool and Material
    Combinations.” <i>Journal of Advanced Joining Processes</i> 11 (2025). <a href="https://doi.org/10.1016/j.jajp.2025.100299">https://doi.org/10.1016/j.jajp.2025.100299</a>.
  ieee: 'J. Friedlein <i>et al.</i>, “Application of stress-state-dependent ductile
    damage and failure model to clinch joining for a wide range of tool and material
    combinations,” <i>Journal of Advanced Joining Processes</i>, vol. 11, Art. no.
    100299, 2025, doi: <a href="https://doi.org/10.1016/j.jajp.2025.100299">10.1016/j.jajp.2025.100299</a>.'
  mla: Friedlein, Johannes, et al. “Application of Stress-State-Dependent Ductile
    Damage and Failure Model to Clinch Joining for a Wide Range of Tool and Material
    Combinations.” <i>Journal of Advanced Joining Processes</i>, vol. 11, 100299,
    Elsevier BV, 2025, doi:<a href="https://doi.org/10.1016/j.jajp.2025.100299">10.1016/j.jajp.2025.100299</a>.
  short: J. Friedlein, S. Lüder, J. Kalich, H.C. Schmale, M. Böhnke, M.C. Schlichter,
    M. Bobbert, G. Meschut, P. Steinmann, J. Mergheim, Journal of Advanced Joining
    Processes 11 (2025).
date_created: 2025-04-15T11:00:56Z
date_updated: 2026-02-24T14:00:55Z
doi: 10.1016/j.jajp.2025.100299
intvolume: '        11'
language:
- iso: eng
project:
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '138'
  name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '139'
  name: 'TRR 285 – A05: TRR 285 - Subproject A05'
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
publication: Journal of Advanced Joining Processes
publication_identifier:
  issn:
  - 2666-3309
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Application of stress-state-dependent ductile damage and failure model to clinch
  joining for a wide range of tool and material combinations
type: journal_article
user_id: '7850'
volume: 11
year: '2025'
...
---
_id: '61149'
abstract:
- lang: eng
  text: The use of continuous fiber-reinforced thermoplastics (FRTP) in automotive
    industry increases due to their excellent material properties and possibility
    of rapid processing. The scale spanning heterogeneity of their material structure
    and its influence on the material behavior, however, presents significant challenges
    for most joining technologies, such as self-piercing riveting (SPR). During mechanical
    joining, the material structure is significantly altered within and around the
    joining zone, heavily influencing the material behavior. A comprehensive understanding
    of the underlying phenomena of material alteration during the SPR process is essential
    as basis for validating numerical simulations. This study examines the material
    structure at ten stages of a step-setting test of SPR with two FRTP sheets with
    glass-fiber reinforcement. Utilizing X-ray computed tomography (CT), the damage
    phenomena within different areas of the setting test are analyzed three-dimensionally
    and key parameters are quantified. Dominating phenomena during the penetration
    of the rivet into the laminate are fiber failure (FF), interfiber failure (IFF)
    and fiber bending, while delamination, fiber kinking and roving splitting are
    also observed. At the final stages, the bottom layers of the second sheet collapse
    and form a bulge into the cavity of the die.
author:
- first_name: Alrik
  full_name: Dargel, Alrik
  id: '114764'
  last_name: Dargel
- first_name: Benjamin
  full_name: Gröger, Benjamin
  last_name: Gröger
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- first_name: Johannes
  full_name: Gerritzen, Johannes
  id: '105344'
  last_name: Gerritzen
  orcid: 0000-0002-0169-8602
- first_name: Daniel
  full_name: Köhler, Daniel
  id: '83408'
  last_name: Köhler
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
- first_name: Maik
  full_name: Gude, Maik
  last_name: Gude
- first_name: Robert
  full_name: Kupfer, Robert
  last_name: Kupfer
citation:
  ama: 'Dargel A, Gröger B, Schlichter MC, et al. LOCAL DEFORMATION AND FAILURE OF
    COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION.
    In: Gomes JFS, Meguid SA, eds. <i>Proceedings of the 8th International Conference
    on Integrity-Reliability-Failure (IRF2025)</i>. FEUP; 2025. doi:<a href="https://doi.org/10.24840/978-972-752-323-8">10.24840/978-972-752-323-8</a>'
  apa: 'Dargel, A., Gröger, B., Schlichter, M. C., Gerritzen, J., Köhler, D., Meschut,
    G., Gude, M., &#38; Kupfer, R. (2025). LOCAL DEFORMATION AND FAILURE OF COMPOSITES
    DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION. In J.
    F. S. Gomes &#38; S. A. Meguid (Eds.), <i>Proceedings of the 8th International
    Conference on Integrity-Reliability-Failure (IRF2025)</i>. FEUP. <a href="https://doi.org/10.24840/978-972-752-323-8">https://doi.org/10.24840/978-972-752-323-8</a>'
  bibtex: '@inproceedings{Dargel_Gröger_Schlichter_Gerritzen_Köhler_Meschut_Gude_Kupfer_2025,
    place={Porto}, title={LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING
    RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION}, DOI={<a href="https://doi.org/10.24840/978-972-752-323-8">10.24840/978-972-752-323-8</a>},
    booktitle={Proceedings of the 8th International Conference on Integrity-Reliability-Failure
    (IRF2025)}, publisher={FEUP}, author={Dargel, Alrik and Gröger, Benjamin and Schlichter,
    Malte Christian and Gerritzen, Johannes and Köhler, Daniel and Meschut, Gerson
    and Gude, Maik and Kupfer, Robert}, editor={Gomes, J.F. Silva and Meguid, Shaker
    A.}, year={2025} }'
  chicago: 'Dargel, Alrik, Benjamin Gröger, Malte Christian Schlichter, Johannes Gerritzen,
    Daniel Köhler, Gerson Meschut, Maik Gude, and Robert Kupfer. “LOCAL DEFORMATION
    AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE
    INVESTIGATION.” In <i>Proceedings of the 8th International Conference on Integrity-Reliability-Failure
    (IRF2025)</i>, edited by J.F. Silva Gomes and Shaker A. Meguid. Porto: FEUP, 2025.
    <a href="https://doi.org/10.24840/978-972-752-323-8">https://doi.org/10.24840/978-972-752-323-8</a>.'
  ieee: 'A. Dargel <i>et al.</i>, “LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING
    SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION,” in <i>Proceedings
    of the 8th International Conference on Integrity-Reliability-Failure (IRF2025)</i>,
    Porto, 2025, doi: <a href="https://doi.org/10.24840/978-972-752-323-8">10.24840/978-972-752-323-8</a>.'
  mla: 'Dargel, Alrik, et al. “LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING
    SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION.” <i>Proceedings
    of the 8th International Conference on Integrity-Reliability-Failure (IRF2025)</i>,
    edited by J.F. Silva Gomes and Shaker A. Meguid, FEUP, 2025, doi:<a href="https://doi.org/10.24840/978-972-752-323-8">10.24840/978-972-752-323-8</a>.'
  short: 'A. Dargel, B. Gröger, M.C. Schlichter, J. Gerritzen, D. Köhler, G. Meschut,
    M. Gude, R. Kupfer, in: J.F.S. Gomes, S.A. Meguid (Eds.), Proceedings of the 8th
    International Conference on Integrity-Reliability-Failure (IRF2025), FEUP, Porto,
    2025.'
conference:
  end_date: 2025-07-18
  location: Porto
  name: 8th International Conference on Integrity-Reliability-Failure (IRF2025)
  start_date: 2025-07-15
date_created: 2025-09-08T11:52:45Z
date_updated: 2026-02-27T06:45:17Z
doi: 10.24840/978-972-752-323-8
editor:
- first_name: J.F. Silva
  full_name: Gomes, J.F. Silva
  last_name: Gomes
- first_name: Shaker A.
  full_name: Meguid, Shaker A.
  last_name: Meguid
keyword:
- self-piercing riveting
- computed tomography
- thermoplastic composites
- process-structure-interaction
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.researchgate.net/publication/395593556_LOCAL_DEFORMATION_AND_FAILURE_OF_COMPOSITES_DURING_SELF-PIERCING_RIVETING_A_CT_BASED_MICROSTRUCTURE_INVESTIGATION
oa: '1'
place: Porto
project:
- _id: '133'
  name: TRR 285 - Project Area C
- _id: '148'
  name: TRR 285 - Subproject C04
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
- _id: '131'
  name: TRR 285 - Project Area A
- _id: '137'
  name: TRR 285 - Subproject A03
- _id: '135'
  name: TRR 285 - Subproject A01
publication: Proceedings of the 8th International Conference on Integrity-Reliability-Failure
  (IRF2025)
publication_identifier:
  isbn:
  - '9789727523238'
publication_status: published
publisher: FEUP
status: public
title: 'LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING:
  A CT BASED MICROSTRUCTURE INVESTIGATION'
type: conference
user_id: '105344'
year: '2025'
...
---
_id: '59585'
abstract:
- lang: eng
  text: <jats:p>Similar to bulk metal forming, clinch joining is characterised by
    large plastic deformations and a variety of different 3D stress states, including
    severe compression. However, inherent to plastic forming is the nucleation and
    growth of defects, whose detrimental effects on the material behaviour can be
    described by continuum damage models and eventually lead to material failure.
    As the damage evolution strongly depends on the stress state, a stress-state-dependent
    model is utilised to correctly track the accumulation. To formulate and parameterise
    this model, besides classical experiments, so-called modified punch tests are
    also integrated herein to enhance the calibration of the failure model by capturing
    a larger range of stress states and metal-forming-specific loading conditions.
    Moreover, when highly ductile materials are considered, such as the dual-phase
    steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong
    necking and localisation might occur prior to fracture. This can alter the stress
    state and affect the actual strain at failure. This influence is captured by coupling
    plasticity and damage to incorporate the damage-induced softening effect. Its
    relative importance is shown by conducting inverse parameter identifications to
    determine damage and failure parameters for both mentioned ductile metals based
    on up to 12 different experiments.</jats:p>
article_number: '157'
author:
- first_name: Johannes
  full_name: Friedlein, Johannes
  last_name: Friedlein
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Malte Christian
  full_name: Schlichter, Malte Christian
  id: '61977'
  last_name: Schlichter
- 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
- first_name: Julia
  full_name: Mergheim, Julia
  last_name: Mergheim
- first_name: Paul
  full_name: Steinmann, Paul
  last_name: Steinmann
citation:
  ama: Friedlein J, Böhnke M, Schlichter MC, et al. Material Parameter Identification
    for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch
    Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2024;8(4).
    doi:<a href="https://doi.org/10.3390/jmmp8040157">10.3390/jmmp8040157</a>
  apa: Friedlein, J., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Mergheim,
    J., &#38; Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent
    Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing
    and Materials Processing</i>, <i>8</i>(4), Article 157. <a href="https://doi.org/10.3390/jmmp8040157">https://doi.org/10.3390/jmmp8040157</a>
  bibtex: '@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024,
    title={Material Parameter Identification for a Stress-State-Dependent Ductile
    Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={<a href="https://doi.org/10.3390/jmmp8040157">10.3390/jmmp8040157</a>},
    number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
    AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte Christian
    and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul},
    year={2024} }'
  chicago: Friedlein, Johannes, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert,
    Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification
    for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch
    Joining.” <i>Journal of Manufacturing and Materials Processing</i> 8, no. 4 (2024).
    <a href="https://doi.org/10.3390/jmmp8040157">https://doi.org/10.3390/jmmp8040157</a>.
  ieee: 'J. Friedlein <i>et al.</i>, “Material Parameter Identification for a Stress-State-Dependent
    Ductile Damage and Failure Model Applied to Clinch Joining,” <i>Journal of Manufacturing
    and Materials Processing</i>, vol. 8, no. 4, Art. no. 157, 2024, doi: <a href="https://doi.org/10.3390/jmmp8040157">10.3390/jmmp8040157</a>.'
  mla: Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent
    Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing
    and Materials Processing</i>, vol. 8, no. 4, 157, MDPI AG, 2024, doi:<a href="https://doi.org/10.3390/jmmp8040157">10.3390/jmmp8040157</a>.
  short: J. Friedlein, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, J. Mergheim,
    P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).
date_created: 2025-04-15T11:07:52Z
date_updated: 2025-05-20T13:14:43Z
department:
- _id: '157'
doi: 10.3390/jmmp8040157
intvolume: '         8'
issue: '4'
language:
- iso: eng
project:
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
  issn:
  - 2504-4494
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Material Parameter Identification for a Stress-State-Dependent Ductile Damage
  and Failure Model Applied to Clinch Joining
type: journal_article
user_id: '61977'
volume: 8
year: '2024'
...
