Accession Number:

AD0723285

Title:

An Application of Fracture Concepts to the Prediction of Critical Length of Fatigue Cracks. Part IV. Fracture Mechanics Analyses for Prediction of Critical Lengths and Velocities of Fatigue Cracks in 7075-T7351 Aluminum Alloy.

Descriptive Note:

Technical rept. Jun 69-Jun 70,

Corporate Author:

AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1971-03-01

Pagination or Media Count:

64.0

Abstract:

The Irwin fracture criteria and Boyle mechanical compliance analysis were used to predict critical crack lengths of stable fatigue cracks in aluminum alloy 7075-T7351 plates. The Boyd hypothesis was also used to predict the velocity of unstable cracks in these plates. Author

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE