Abstract

Some aspects of the analysis of elastic-plastic deformation processes with both elastic and plastic finite strain components are studied. The discussion is intentionally restricted to the geometric description of such situation. As a starting point the intermediate configuration concept is accepted but some important generalizations to it appear to be necessary. Basing upon this concept the properly invariant forms of strain and rate of strain measures are defined being referred to the the reference, intermediate and actual configurations, respectively. The applicability of the different strain measures to the constitutive equations is discussed.

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