INVESTIGADORES
LUCCIONI Bibiana Maria
artículos
Título:
Coupled Plastic Damaged Model
Autor/es:
LUCCIONI FORNS, BIBIANA MARÍA; SERGIO OLLER,; DANESI, RODOLFO
Revista:
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 1996 vol. 129 p. 81 - 89
ISSN:
0045-7825
Resumen:
A constitutive model that couples plasticity and damage is presented. The model is thermodynamically consistent and comes from a generalization of classical plasticity theory and isotropic damage theory of kachanov. Coupling between plasticity and damage is achieved through simultaneous solution of the plastic and damage problem. After a description of the model, a numerical algorithm for the integration of the resulting constitutive equations is presented. It is an Euler Backward type ofalgorithm that is particularly suitable to solve plain stress non-linear problems with a 2D finite elements program. The consistent stiffness matrix is also derived. The paper is completed with some application examples that show that the model presented accurately reproduces the behaviour of elastic-plastic-damage materials.
