Accession Number : AD0754414

Title :   The Effect of the Intermediate Principal Stress on Triaxial Fatigue of 7075-T6 Aluminum Alloy,

Corporate Author : BROWN UNIV PROVIDENCE R I ENGINEERING MATERIALS RESEARCH LAB

Personal Author(s) : Findley,W. N. ; Tracy,J. F.

Report Date : OCT 1972

Pagination or Media Count : 9

Abstract : Fatigue tests of 7075-T6 aluminum alloy under synchronous pulsating triaxial stresses were performed with three different values of the intermediate principal stress. Thick-walled tubes were subjected to internal pressure pulse axial stress such that the state of stress at the inner surface was as follows: in the first case the intermediate principal stress was a compression equal to the internal pressure; in the second it was a tension equal to the internal pressure; and in the third it was a tension equal to the hoop stress at the inner surface. Results showed no effect of the intermediate principal stress. (Author)

Descriptors :   (*ALUMINUM ALLOYS, FATIGUE(MECHANICS)), STRESSES

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE