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) : Davis,Sidney O.

Report Date : MAR 1971

Pagination or Media Count : 64

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)

Descriptors :   (*FRACTURE(MECHANICS), *ALUMINUM ALLOYS), METAL PLATES, MATHEMATICAL ANALYSIS, CRACK PROPAGATION, PREDICTIONS, THESES

Subject Categories : Metallurgy and Metallography
      Mechanics
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE