The 2nd International Conference "The Problems of Nonlinear Mechanics of Deformable Solids"

Finite deformations in materials with structural changes

A. A. Rogovoi

Institute of Continuous Media Mechanics UB RAS, Perm'

Abstract: The paper is concerned with the problem of dividing the inelastic energy into heat and latent energy, the latter being connected with the structural changes in a material. Here we use the approach leading, in the framework of finite deformations, to the heat conductivity equation, namely, to that part of it, which defines heat production by inelastic sources. Taking into account the experimental data, it has been supposed that the elastic properties of a material do not depend on the structural changes caused by plastic deformations. The experimental curve describing the fraction of plastic work transformed into heat has been obtained.

Keywords: finite deformations, heat conductivity equation, heat and latent inelastic energy, plastic work transformed into heat.

UDC: 539.3

Received: 25.02.2010