Premium
Damage and delamination processes in thermo‐viscoelastic materials
Author(s) -
Thomas Marita
Publication year - 2013
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201310259
Subject(s) - viscoelasticity , delamination (geology) , nonlinear system , mechanics , continuum mechanics , momentum (technical analysis) , materials science , classical mechanics , physics , composite material , geology , paleontology , finance , quantum mechanics , subduction , economics , tectonics
This contribution addresses several models for rate‐independent damage and delamination processes in thermo‐viscoelastic materials. In the spirit of continuum damage mechanics, both degradation phenomena are modeled by means of internal variables, governed by a rate‐independent flow rule. The latter is coupled in a highly nonlinear way with the heat equation and the momentum balance for the displacements. We present a suitable weak formulation for this class of models, and discuss existence and approximation results in the framework of variational convergence. (© 2013 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)