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Variational formulations for single‐crystal strain‐gradient plasticity at large deformations
Author(s) -
Reddy B. D.
Publication year - 2013
Publication title -
gamm‐mitteilungen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.239
H-Index - 18
eISSN - 1522-2608
pISSN - 0936-7195
DOI - 10.1002/gamm.201310009
Subject(s) - dissipative system , plasticity , dissipation , hardening (computing) , normality , strain hardening exponent , crystal plasticity , balanced flow , function (biology) , mathematics , mathematical analysis , materials science , physics , thermodynamics , composite material , statistics , layer (electronics) , evolutionary biology , biology
Variational formulations are constructed for rate‐independent problems in single‐crystal strain‐gradient plasticity in the framework of large deformations. Provision is made for energetic and dissipative microstresses, and a hardening law based on accumulated generalized slips is introduced. The variational formulations use the flow rule either in terms of the dissipation function or a generalized normality law. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)