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Nonconvex energy functions. Hemivariational inequalities and substationarity principles

Nonconvex energy functions. Hemivariational inequalities and substationarity principles The purpose of the present paper is the derivation of certain new classes of variational principles for material laws and boundary conditions resulting from nonconvex, generally nondifferentiable, potentials. To this end two recently defined notions are employed the “generalized gradient” of Clarke and the “derivate container” of Warge. Several general classes of problems are discussed and the respective variational forms called here hemivariational inequalities are derived. For the respective static problems the equivalence of these forms to the “substationarity” of the potential and complementary energy is discussed. Finally an integral inclusion formulation for certain classes of static problems is presented. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Mechanica Springer Journals

Nonconvex energy functions. Hemivariational inequalities and substationarity principles

Acta Mechanica , Volume 48 (4) – Jan 31, 2005

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References (41)

Publisher
Springer Journals
Copyright
Copyright © 1983 by Springer-Verlag
Subject
Engineering; Theoretical and Applied Mechanics; Classical and Continuum Physics; Solid Mechanics; Solid Mechanics; Vibration, Dynamical Systems, Control; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0001-5970
eISSN
1619-6937
DOI
10.1007/BF01170410
Publisher site
See Article on Publisher Site

Abstract

The purpose of the present paper is the derivation of certain new classes of variational principles for material laws and boundary conditions resulting from nonconvex, generally nondifferentiable, potentials. To this end two recently defined notions are employed the “generalized gradient” of Clarke and the “derivate container” of Warge. Several general classes of problems are discussed and the respective variational forms called here hemivariational inequalities are derived. For the respective static problems the equivalence of these forms to the “substationarity” of the potential and complementary energy is discussed. Finally an integral inclusion formulation for certain classes of static problems is presented.

Journal

Acta MechanicaSpringer Journals

Published: Jan 31, 2005

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