Accession Number:

AD0617169

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

CALIFORNIA UNIV BERKELEY INST OF ENGINEERING RESEARCH

Personal Author(s):

Report Date:

1965-04-01

Pagination or Media Count:

14.0

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 Druckers postulate. Here, we discuss further the implication of Druckers postulate in connection with a set of constitutive equations for an elastic-plastic continuum in which the postulate need not be satisfied. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE