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Modelling

Decisive for the cause of failure in the mechanical joining process is in particular the prevailing stress situation, the complex material behavior taking into account friction, plasticity and damage mechanisms as well as frequently incorrectly joined or overstressed joints. With regard to service loading, corrosion phenomena and the development and propagation of fatigue cracks have to be considered as well in order to avoid damage to mechanically joined structures under service loading. To analyze the properties of a clinched joint, trial-and-error methods and experience-based approaches have often been used so far. However, these are in general only rigidly valid for individual material-geometry combinations, so that the design of the clinching process can currently only react to external process changes to a limited extent and have to be carried out individually for each material combination.

Therefore, a reliable prediction of joinability requires a comprehensive methodology that considers the entire product life cycle from the material to be joined, through the manufacturing process, to the operation of the joint. This holistic approach is essential for an exact process simulation as well as a reliable prediction of load-bearing capacity and service life and is consequently an essential subject of the interdisciplinary cooperation within the working group “Modeling”. The TRR subprojects represented in this working group are doing research regarding holistic modeling approaches and, thus, contribute to the penetration of the complex cause-effect relationships in the mechanical joining of different materials (e.g. aluminum, steel and fiber composites). In this context, the numerical modeling of the entire joining process chain using the LS-Dyna software is aimed at, taking into account the design phase of the product, the joining process with damage modeling as well as the properties of the joint resulting from the operational phase (including corrosion and fatigue crack growth). A consistent consideration of these phases is necessary to manufacture clinched products in a process-safe manner and to be able to fulfill their functions over the entire service life. A simulation chain that takes into account all phases of the product development process of a clinched structure contributes significantly to the understanding of the complex interactions in the mechanical joining of different materials and, thus, ensures the joinability in versatile process chains.

 

Arbeitskreisleiterin

Britta Schramm  

Dr.-Ing. Britta Schramm

Office: IW1.872
Phone: +49 5251 60-5327
E-mail: schramm(at)fam.uni-paderborn(dot)de

Mitglieder

Christian Roman Bielak  

M. Sc. Christian Roman Bielak

Teilprojekt A01

Office: P1.3.22.1
Phone: +49 5251 60 3811
E-mail: christian.bielak(at)lwf.uni-paderborn(dot)de

Alexander Brosius  

Prof. Dr.-Ing. Alexander Brosius

Projectnr. B01, C04

Phone: +49 351 463 37616
E-mail: alexander.brosius(at)tu-dresden(dot)de

Johannes Friedlein  

M. Sc. Johannes Friedlein

Teilprojekt A05

Phone: +49 9131 85 64400
E-mail: johannes.friedlein(at)fau(dot)de

Benjamin Gröger  

Dipl.-Ing. Benjamin Gröger

Teilprojekt A03

Phone: +49351 463 38155
E-mail: benjamin.groeger(at)tu-dresden(dot)de

Maik Gude  

Prof. Dr.-Ing. habil. Maik Gude

Teilprojekt A03

Phone: +49 351 463 38153
E-mail: maik.gude(at)tu-dresden(dot)de

Sven Harzheim  

Dipl.-Ing. Sven Harzheim

Teilprojekt B03

Phone: +49 351 46333401
E-mail: sven.harzheim(at)tu-dresden(dot)de

Andreas Hornig  

Dr. Andreas Hornig

Teilprojekt A03

Phone: +49 351 463 38007
E-mail: andreas.hornig(at)tu-dresden(dot)de

Daniel Köhler  

Dipl.-Ing. Daniel Köhler

Teilprojekt C04

Phone: +49 351 463 37916
E-mail: daniel.koehler3(at)tu-dresden(dot)de

Sven Martin  

Sven Martin

Teilprojekt B01

Phone: +49 5251 605406
E-mail: sven.martin(at)uni-paderborn(dot)de

Gerson Meschut  

Prof. Dr.-Ing. Gerson Meschut

Teilprojekte A01, C02, Z

Phone: +49 5251 60 3031
E-mail: meschut(at)lwf.uni-paderborn(dot)de

Annika Oesterwinter  

M. Sc. Annika Oesterwinter

Teilprojekt C03

Phone: +49 5251 60 5953
E-mail: ao(at)luf.upb(dot)de

 

Dipl.-Ing. (FH) Christian Steinfelder

Teilprojekt B01

Phone: +49 351 463 42497
E-mail: christian.steinfelder(at)tu-dresden(dot)de

Paul Steinmann  

Prof. Dr.-Ing Paul Steinmann

Teilprojekt A05

Phone: +49 9131 8528501
E-mail: paul.steinmann(at)fau(dot)de

Thomas Tröster  

Prof. Dr. Thomas Tröster

Teilprojekt B01

Office: Y2.116
Phone: +49 5251 60 5331
E-mail: thomas.troester(at)uni-paderborn(dot)de

 

Prof. Dr.-Ing. habil. Thomas Wallmersperger

subproject B03

Phone: +49 351 463337013
E-mail: thomas.wallmersperger(at)tu-dresden(dot)de

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