J. Phys. IV France
Volume 110, September 2003
Page(s) 75 - 80

J. Phys. IV France
110 (2003) 75
DOI: 10.1051/jp4:20020673

The modeling of mesodefect kinetics peculiarities on a stress wave front

O.A. Plekhov

ENSAM, Laboratoire Matériaux Endommagement Fiabilité et Ingénierie des Procédés, EA 2727, Esplanade des Arts et Métiers, 33405 Talence cedex, France

The effect of mesodefect kinetics on a structure of stress waves in solid is studied theoretically. The new constitutive equations based on the introduction of two interacting order parameters are developed. The first parameter describes the macroscopic deformation caused by the defect growth. The second one describes the evolution of nonequilibrium potential of the system due to rescaling in defect ensemble. Using the model coupled with the equations of the continuous media mechanics, the right structures of stress wave in a target under plate impact test is obtained.

© EDP Sciences 2003