WIT Press


Variational Formulations Of Elastoplastic And Damage Models By An Internal Variable Approach

Price

Free (open access)

Paper DOI

10.2495/CON950351

Volume

7

Pages

8

Published

1995

Size

726 kb

Author(s)

F. Marotti de Sciarra

Abstract

Ductile damage models cast in the framework of the generalized standard material (GSM) are presented. Damage static internal variable are directly linked with the elastic energy and the hardening functional. The general variational formulation for elastoplasticy coupled with damage is derived together with a mixed principle which is useful! from the computational standpoint. 1 INTRODUCTION The need of advance the performance of materials adopted in the applica- tions of structural engeniering has increased the attention devoted to the constitutive theories of inelastic behaviour. Two wide adopted classes of inelastic constitutive theories are the elasto-plasticity with internal variable

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