A Theory of Viscoplasticity with a Yield Surface. Part 2. Application to Mechanical Behavior of Metals

Abstract

The endochronic theory of viscoplasticity developed previously by the author is used to give quantitative analytical predictions on the mechanical response of aluminum and copper under conditions of complex strain histories. One single constitutive equation describes with remarkable accuracy and ease of calculation diverse phenomena, such as cross-hardening, loading and unloading loops, cyclic hardening as well as behavior in tension in the presence of a shearing stress, which have been observed experimentally by four different authors.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1971
Accession Number
AD0725026

Entities

People

  • K. C. Valanis

Organizations

  • University of Iowa

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Agreements
  • Air Force
  • Bulk Modulus
  • Compression
  • Constitutive Equations
  • Equations
  • Experimental Data
  • Hardening
  • Materials
  • Mechanics
  • Plastic Properties
  • Poisson Ratio
  • Shear Stresses
  • Stress Strain Relations
  • Stresses
  • Unloading
  • Viscoplasticity

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Theoretical Analysis.