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Self-pierce riveting of materials with limited ductility investigated with the Bai-Wierzbicki damage model in GISSMO

Paper presented at 14. Deutschem LS-DYNA Forum, 10.-12. Oktober 2016, Bamberg
Untersuchung des Halbhohlstanznietens von Werkstoffen mit eingeschränkter Duktilität mit dem Bai-Wierzbicki Versagensmodell in GISSMO
 
: Hofmann, Martin; Andersson, Robert; Wallmersperger, Thomas; Jäckel, Mathias; Landgrebe, Dirk

:
Volltext urn:nbn:de:0011-n-4261192 (369 KByte PDF)
MD5 Fingerprint: 069c8aaa0697b7d530fff9077f5d5fb9
Erstellt am: 20.12.2016


2016, 4 S.
LS-DYNA Forum <14, 2016, Bamberg>
Englisch
Vortrag, Elektronische Publikation
Fraunhofer IWU ()
Halbhohlstanznieten; self-pierce riveting; simulation; Schädigungsmodell

Abstract
The advanced damage model of Bai and Wierzbicki has been applied to model the joining of self-pierce riveting for Aluminum die cast with different die geometries. Currently only start and location of cracking can be predicted. The element deletion due to damage leads to convergence problems resulting from contact or to aborts at remeshing. Therefore further investigations have to be done. Possibly it might be more suitable using other methods than finite elements like smooth particle hydrodynamics (SPH), because there no remeshing will be needed and the blurry boundaries of the particles will reduce convergence problems during contact.

: http://publica.fraunhofer.de/dokumente/N-426119.html