A Continuous Damage Mechanics Model for Ductile Fracture
- 1 January 1985
- journal article
- Published by ASME International in Journal of Engineering Materials and Technology
- Vol. 107 (1) , 83-89
- https://doi.org/10.1115/1.3225775
Abstract
A model of isotropic ductile plastic damage based on a continuum damage variable, on the effective stress concept and on thermodynamics is derived. The damage is linear with equivalent strain and shows a large influence of triaxiality by means of a damage equivalent stress. Identification for several metals is made by means of elasticity modulus change induced by damage. A comparison with the McClintock and Rice-Tracey models and with some experiments is presented for the influence of triaxiality on the strain to rupture.Keywords
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