Strain Hardening Under Combined Stresses

Abstract

Experimental investigations of the strain hardening of metals under combined stresses are usually conducted so that the directions of the principal stresses as well as the ratios of their magnitudes remain constant during any one test. The paper is concerned with incompressible isotropic materials which are stressed in this manner and deform in accordance with certain postulates. The most general stress‐strain relation which can arise under these circumstances is established, and some special cases of this relation are discussed.