The Effect of Residual Stress on Crack Propagation in HY-80 Steels

Abstract

Tests were conducted to determine the effect of residual stress on the rate of crack growth in HY-80 plate steel. A residual stress field, over and above that inherently present in as-quenched and tempered material, was induced by means of welding-in of a pre-cracked patch plate into the specimen body; a cyclic load, which would induce particular values of stress intensity, was then applied. From the ensuing test results, a growth rate relation was determined and compared to a similar relation obtained from like tests performed on specimens having zero weld-induced residual stress.

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Document Details

Document Type
Technical Report
Publication Date
Oct 22, 1971
Accession Number
AD0732028

Entities

People

  • Robert Sherman.

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Classification
  • Contracts
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Creep
  • Fracture (Mechanics)
  • Hydraulic Cylinders
  • Intensity
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Photographs
  • Residual Stress
  • Stresses
  • Test Sets
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Structural Health Monitoring of Composite Structures.