FAILURE OF STRUCTURAL ALLOYS BY SLOW CRACK GROWTH,

Abstract

Structural alloys are susceptible to failure by slow crack growth caused by fatigue and corrosion-fatigue. Laboratory studies have provided quantitative engineering data on the resistance of various steels and titanium alloys to slow crack growth. The rate of crack growth per cycle of repeated load was shown to be a function of the fracture mechanics crack tip stress-intensity factor. Methods were shown for relating these results to structural parameters, nominal stress, and flaw geometry. The influence of a salt water environment on slow crack growth and interaction with stress-corrosion cracking were explored. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 14, 1969
Accession Number
AD0696936

Entities

People

  • E. A. Lange
  • Thomas W. Crooker

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Alloys
  • Corrosion
  • Crack Tips
  • Cracks
  • Fracture (Mechanics)
  • Mechanics
  • Salt Water
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Stress Intensity Factors
  • Stresses
  • Titanium
  • Titanium Alloys

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.