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Thermo‐mechanical modelling and finite element analysis of self‐piercing riveting processes
Author(s) -
Nahrmann Marvin,
Matzenmiller Anton
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800234
Subject(s) - rivet , finite element method , constitutive equation , joint (building) , materials science , process (computing) , work (physics) , structural engineering , mechanical engineering , engineering , computer science , composite material , operating system
Abstract In this contribution, a thermo‐mechanical finite element analysis of the self‐piercing riveting process of two steel sheets is carried out taking into account the conversion of plastic work into heat. Thereby, a user defined constitutive model recently proposed by BRÖCKER and MATZENMILLER is applied considering the highly temperature and rate dependent characteristics of metals. All constitutive parameters are identified with test data of the microalloyed steel HX340LAD typically used for car body structures. The numerical results of the self‐piercing riveting process are compared to the according test data for model validation by means of the final joint geometry and the setting force.