Accession Number:

AD0736781

Title:

The Endochronic Theory of Viscoplasticity - Application to the Mechanical Behavior of Metals

Descriptive Note:

Final compilation rept.

Corporate Author:

STEVENS INST OF TECH HOBOKEN NJ DEPT OF CHEMISTRY AND CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1971-12-01

Pagination or Media Count:

141.0

Abstract:

A theory of thermoviscoplasticity is developed, which is firmly founded on the principles of irreversible thermodynamics of internal variables developed previously by the author. It differs from previous theories in the essential axiom that the material senses changes in deformation and temperature in a time scale which is an inherent material property. The theory has thus been termed ENDOCHRONIC. Material behavior is described in terms of heredity functions akin to those in viscoelasticity. Many applications to the mechanical behavior of copper and aluminum are then considered, and many facets of their behavior such as yield, hysteresis, Bauschinger effect, cross-hardening, cyclic hardening, creep and relaxation are predicted and described analytically by the theory, with remarkable accuracy.

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE