Accession Number:

AD0263054

Title:

LOADING AND UNLOADING SOLUTIONS FOR AN ELASTIC/PLASTIC ANNULAR PLATE IN THE STATE OF PLANE STRESS UNDER COMBINED PRESSURE AND COUPLE

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY INST OF ENGINEERING RESEARCH

Personal Author(s):

Report Date:

1961-04-01

Pagination or Media Count:

1.0

Abstract:

A detailed analysis is presented of the axisymmetric deformation of elasticplastic circular annular plates in the state of plane stress under combined pressure and couple due to circumferential shear at the inner boundary. With the use of Trescas loading function and itsASSOCIATED FLOW RULES, THE RESULTS OBTAINED INCLUDE COMPLETE ELASTICPERFECTLY PLASTIC SOLUTIONS DURING BOTH LOADING AND UNLOADING, AND COMPLETE WORKHARDENING SOLUTIONS DURING LOADING WITH ISOTROPIC AND WITH KINEMATIC HARDENING. The major portion of the paper deals with the unloading problem which requires two new solutions in addition to the usual elastic unloading solution in order to cover the full range of load programs including those with one load parameter increasing and the other decreasing. Several novel features of this combined load problem are discussed and illustrated through numerical ex mples. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE