A finite strain non-isothermal phase-field model for damage and fracture in elasto-plastic impact problem

Resumo

This paper presents a thermodynamically consistent non-isothermal phase-field framework to model
the damage and fracture effects in elasto-plastic materials under finite strain. Following Boldrini et al. [1], the
adopted methodology is based on the use of the principle of virtual power, energy balance, and the second law
of thermodynamics in the form of a Clausius-Duhem inequality for entropy. Contact constraints are introduced
conveniently in the weak form of the resulting motion equation. A frictionless impact fracture problem simulation,
disregarding thermal effects, shows that the proposed model can reproduce qualitatively the crack initialization and
subsequent propagation.