Analysis of a strain softening constitutive model

G. Frantziskonis, C. S. Desai

Research output: Contribution to journalArticle

Abstract

The paper first examines the question of uniqueness of a basic yet simplified constitutive model with strain softening. It is shown that the constitutive equations lead to a unique solution for the case of rate-dependent as well as rate-independent formulation and its implementation in finite element analysis shows mesh size insensitivity in the hardening and softening regimes. Conditions for formation of narrow shear bands are developed and discussed. It is shown that as the damage accumulates the material approaches localization of deformation.

Original languageEnglish (US)
Number of pages1
JournalMathematical and Computer Modelling
Volume10
Issue number10
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Modeling and Simulation
  • Computer Science Applications

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