C. Dascalu et Ga. Maugin, MATERIAL FORCES AND ENERGY-RELEASE RATES IN HOMOGENEOUS ELASTIC BODIES WITH DEFECTS, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 317(9), 1993, pp. 1135-1140
An unambiguous relationship is established between the notion of mater
ial force on the reference configuration and that of energy-release ra
te for a ''rigid-body'' motion (progress) of defects in homogenous ela
stic bodies within the framework of elastodynamics in finite strains.
This generalizes the result of Ehrlacher in linear elasticity.