A general orthotropic von mises plasticity material model with mixed hardening: Model definition and implicit stress integration procedure

Milos Kojic, N. Grujović, R. Slavković, M. Živković

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

A general orthotropic von Mises plasticity model with an extension of the Hill's yield criterion to include mixed hardening is introduced in the paper. Material constants and equivalent stress-equivalent plastic strain curves are defined in a way to suggest their experimental determination. The model represents a special case of a general anisotropic metal plasticity model proposed by the authors. An implicit stress integration procedure representing an application of the governing parameter method (GPM) introduced by the first author is presented. The GPM is briefly described and the computational procedure together with calculation of the consistent tangent moduli are given in some detail for a general three-dimensional deformation with direction of application to plane stress/shell conditions. Numerical examples illustrate applicability of the model and effectiveness of the computational algorithm.

Original languageEnglish (US)
Pages (from-to)376-382
Number of pages7
JournalJournal of Applied Mechanics, Transactions ASME
Volume63
Issue number2
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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