On the coupled thermomechanical treatment of necking problems via finite element methods

verfasst von
Peter Wriggers, C. Miehe, J. C. Simo, Michal Kleiber
Abstract

The necking process of a bar in an uniaxial tension test is influenced by the heat production due to inelastic deformations. Thus, for an analysis of this problem the thermomechanical coupling has to be considered. A finite element model and an associated algorithm are developed for this purpose. This computational tool allows the study of adiabatic processes as well as processes with heat flux. The analysis of the necking process of a perfectly cylindrical specimen shows that, in contrast to isothermal and adiabatic cases, no bifurcation occurs in the case where heat flux is considered.

Externe Organisation(en)
Technische Universität Darmstadt
Stanford University
Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
Typ
Artikel
Journal
International Journal for Numerical Methods in Engineering
Band
33
Seiten
869-883
Anzahl der Seiten
15
ISSN
0029-5981
Publikationsdatum
28.02.1992
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Numerische Mathematik, Ingenieurwesen (insg.), Angewandte Mathematik
Elektronische Version(en)
https://doi.org/10.1002/nme.1620330413 (Zugang: Unbekannt)
 

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