One the use of phase field models to problems with damage, plasticity and large strains

Abstract

The project aims the development and analysis of computational models to describe the damage propagation in materials which present elastoplastic behavior subject to large strains. Instead of considering sharp transitions models, which lead to theoretical difficult and high computational effort, is used a methodology based on diffuse transitions by using phase fields to describe the damage. This allow the complex geometry treatment, as expected in damage development. Furthermore, this treatment enables the thermodynamically consistent models development using the functional free energy and dissipation associated to stabilize the damage. One intend to use finite elements of high order to develop models and algorithms.