joining; clinching; FEM simulations; failure modes; LIMARC
Abstract :
[en] The clinching process, also known as “press joining”, is a mechanical joining technique for
sheet metal. Its basic principle is to clamp together several metal sheets by an impact extrusion between a punch and a die. The joint is formed by a localized cold plastic deformation. Forming is used as a joining method. Within the context of this research, University of Liège is developing numerical models, with the FEM code LAGAMINE, that simulate the clinching process. On the other hand, shear tests on simple joints with one or two clinches were realized and their behaviour is reproduced numerically with LAGAMINE. This work opens the way to the analytical formulation of the behaviour of clinched joints. The article will focus on comparisons between experiments and numerical simulations. First, the identification of model parameters will be explained. Then, the predicted failure modes will be analysed by comparison with the xperiments.
Disciplines :
Materials science & engineering
Author, co-author :
Pietrapertosa, C.
Zhang, Lihong ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Habraken, Anne ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Jaspart, Jean-Pierre ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon.
Language :
English
Title :
Clinching joining system: validation of numerical models
Publication date :
2003
Event name :
6th International ESAFORM Conference on Material Forming
Event place :
Salerno, Italy
Event date :
du 28 au 30 avril 2003
Audience :
International
Main work title :
Proceedings of the 6th International ESAFORM Conference on Material Forming