A variationally consistent generalized variable formulation of the elastoplastic rate problem

zbMath0726.73098MaRDI QIDQ802947

Umberto Perego, Claudia Comi

Publication date: 1991

Published in: Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Serie IX. Rendiconti Lincei. Matematica e Applicazioni (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/244248

zbMATH Keywords

Lagrange multiplier methodgeneralized variablesextremum propertiesconvexity of generalized yield functionskinematic minimum principlemin-max conditionsset of algebraic governing relationsunconstrained saddle point problem

Mathematics Subject Classification ID

Numerical methods involving duality (49M29) Finite element methods applied to problems in solid mechanics (74S05) Optimization of other properties in solid mechanics (74P10) Existence of solutions for minimax problems (49J35) Plastic materials, materials of stress-rate and internal-variable type (74C99)

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