CONSTITUTIVE-EQUATIONS FOR ELASTOPLASTIC BODIES AT FINITE STRAIN - THERMODYNAMIC IMPLEMENTATION

Within the framework of classical mechanics and field theories, equiva lent sets of balance equations and entropy production inequality are f ormulated in spatial, referential and intermediate description for an elastoplastic body at finite strain. The entropy production inequality formulated with respect to the intermediate configuration together wi th an assumption about the functional form of the free energy are used to substantiate new constitutive equations. Special attention is focu sed to the cases of small elastic/large plastic strain deformation (me tal plasticity) and rigid-plastic deformation.