ON TIME-INDEPENDENT PLASTICITY AND METALS UNDER COMBINED STRESS AT ELEVATED TEMPERATURE.

Abstract

A possible description is proposed for the time- and temperature-dependent behavior of metals under combined stress. The present knowledge of essentially time-independent behavior, embodied in the mathematical theory of plastic stress-strain relations and the associated experimental data, is combined with the knowledge of behavior in simple tension at elevated temperature. This is in the spirit of Odqvist's early approach (1934) which translated Mises' description of isotropic plastic stress-strain relations to a most useful formulation for creep under constant stress. Little relevant experimental data is available as yet to permit evaluation of the proposals which are advanced. Questions are raised to which answers cannot be given now. Part of an experimental program in progress is outlined along with directions for future work. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0628856

Entities

People

  • D. C. Drucker

Organizations

  • Brown University

Tags

DTIC Thesaurus Topics

  • Experimental Data
  • Mechanical Properties
  • Physical Properties
  • Plastic Properties
  • Stress Strain Relations
  • Stresses

Readers

  • Artificial Intelligence
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science and Engineering.