Damage Model for Ductile Fracture

Abstract

Large plastic strain in metals is accompanied by nucleation and growth of microvoids and microcracks. This phenomenon is called “ductile plastic damage”; it leads to plastic (“ductile”) fracture. This kind of fracture is considered, for example, in the book of McClintock and Argon [1], from the viewpoint of physics. The corresponding continuum damage mechanics model allows a more comprehensive approach to the formulation of a criterion of local fracture.