Creep Damage under One-Dimensional Variable Tensile Stress.

Abstract

A nonlinear damage relation, containing the axial strain history and a time integral over the stress history, is proposed for the case of one-dimensional time dependent tensile stress. Nonlinear steady and transient creep terms are included in the axial strain relation, and elastic and creep Poisson's ratios are introduced into the lateral strain relation. Using these relations, complete damage solutions are obtained for the constant stress rate, step stress, relaxation and constant load tests. Observations are made concerning the associated rupture times. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1979
Accession Number
ADA075780

Entities

People

  • Francis A. Cozzarelli
  • G. Bernasconi

Organizations

  • University at Buffalo

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Creep
  • Differential Equations
  • Engineering
  • Equations
  • Materials
  • Mechanics
  • Military Research
  • Modulus Of Elasticity
  • Nonlinear Differential Equations
  • Nuclear Engineering
  • Observation
  • Stainless Steel
  • Steel
  • Strain Rate
  • Stress Tests
  • Stresses
  • Tensile Stress

Readers

  • Mechanical Engineering/Mechanics of Materials.