The Residual Static Strength of Fatigue Cracked Lug Specimens of Four Aluminum-Copper Alloys.

Abstract

Residual static strength data from cracked fatigue specimens has been obtained for four aluminum-copper alloys; DTD5014 (RR58), 2L65, 2024-T81, and HID54 (Al 6% Cu). It is concluded that all the materials are crack sensitive and an order of merit of the relative crack sensitivities of the materials is established. The reduction in residual static strength during fatigue life is estimated and is shown to depend on the level of alternating stress; at low alternating stress cracking appears very early in the life with a consequent early fail in strength. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1973
Accession Number
AD0773240

Entities

People

  • F. E. Kiddle

Organizations

  • Royal Aircraft Establishment

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Alloys
  • Aluminum
  • Copper
  • Copper Alloys
  • Cracks
  • Elements
  • Fatigue Life
  • Materials
  • Mechanical Properties
  • Metals
  • Physical Properties
  • Residuals
  • Sensitivity
  • Stress Cracking

Readers

  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.