A COMMENT ON DRUCKER'S POSTULATE IN THE THEORY OF PLASTICITY.

Abstract

A general theory of an elastic-plastic continuum, valid for non-isothermal deformations and accompanied by explicit thermodynamical restrictions, was developed recently by Green and Naghdi. A special case of this theory, assuming isothermal conditions, leads to constitutive relations which are equivalent to those which can be derived from Drucker's postulate. Here, we discuss further the implication of Drucker's postulate in connection with a set of constitutive equations for an elastic-plastic continuum in which the postulate need not be satisfied. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1965
Accession Number
AD0617169

Entities

People

  • Alex E.S. Green
  • Paul M. Naghdi

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Constitutive Equations
  • Differential Equations
  • Equations
  • Equations Of State
  • Mathematical Analysis
  • Mathematics
  • Partial Differential Equations
  • Plastic Properties

Readers

  • Calculus or Mathematical Analysis
  • Structural Health Monitoring of Composite Structures.