On Large-Scale Plasticity Effects in Fatigue Crack Propagation.

Abstract

The correlation between the rate of fatigue crack growth and the stress-intensity factor seems to be well established in the linear elastic range where the size of the plastic zone is small relative to other critical dimensions. However, for large scale yielding in the elastic-plastic region as well as for fully plastic behavior, crack growth relationships have as yet not been as well established. It is the purpose of the present paper to explore possible analytical expressions for fatigue crack growth for such cases involving large-scale plasticity effects. The approach is based upon the use of an assumed relationship between the crack opening displacement as given by Bilby, Cottrell and Swinden and the rate of fatigue crack growth.

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1974
Accession Number
ADA000541

Entities

People

  • A. J. Mcevilly
  • D. Beukelmann
  • Kōichi Tanaka

Organizations

  • University of Connecticut

Tags

DTIC Thesaurus Topics

  • Cooperation
  • Crack Propagation
  • Cracks
  • Displacement
  • Engineering
  • Intensity
  • Mechanical Engineering
  • Physical Properties
  • Plastic Properties
  • Stress Intensity Factors
  • Stresses
  • Systems Engineering

Readers

  • Materials Science (Mechanical Engineering).