Accession Number : AD0290629

Title :   STUDIES IN BIAXIAL CREEP

Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TEX

Personal Author(s) : STOWELL,E.Z. ; GREGORY,R.K.

Report Date : SEP 1962

Pagination or Media Count : 1

Abstract : Tensile and torsional stresses were applied simultaneously to thin-walled tubes of aluminum alloy at an elevated temperature (400 F). Different identical tubes were subjected to different combinations of tension and torsion, the stresses being so chosen that the combined stress intensity remained substantially constant. Simultaneous measurements were made of the resulting tensile and torsional strains. Each test was continued until the creep had definitely entered the final stage. The measured constant creep rates in the steady state were found to agree closely with those which would be expected from classical plasticity theory using the Mises concepts of stress intensity and strain rate intensity. (Author)

Descriptors :   *CREEP, *METALLURGY, *STRESSES, ALUMINUM ALLOYS, BALANCES, HIGH TEMPERATURE, INTENSITY, MEASUREMENT

Distribution Statement : APPROVED FOR PUBLIC RELEASE