The Simulation of Local Stress-Strain Behaviour with Application to Fatigue Analysis.

Abstract

Substantial improvement in fatigue life prediction has been effected by the introduction of cyclic stress-strain concepts. A procedure that incorporates these in a simulation of local stress and strain from nominal load using Neuber notch analysis is described in relation to its application to the fatigue analysis of in-service histories. In the present simulation the non-linear stress-strain and Neuber equations are solved numerically rather than by piecewise approximations. For the long load histories occuring in practice this improves numerical stability.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1979
Accession Number
ADA112174

Entities

People

  • R. C. Fraser

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Aeronautics
  • Aircrafts
  • Computer Programs
  • Corporations
  • Engineering
  • Equations
  • Fatigue Life
  • Geometry
  • Hardening
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanics
  • Simulations
  • Softening
  • Strain Hardening
  • Stress Strain Relations

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Materials Science (Mechanical Engineering).
  • Structural Health Monitoring of Composite Structures.