A SIMPLE PROCEDURE TO SIMULATE THE FAILURE EVOLUTION

To simulate the large-scale failure evolution with current computation al facilities, a simple approach, that catches the essential feature o f failure mechanisms, must be available so that the routine use of fai lure analysis is feasible. Based on the previous research results, a s imple analysis procedure is described in this paper for failure simula tion. In this procedure, the evolution of localization is represented by a moving surface of discontinuity, and the transition between conti nuous and discontinuous failure modes are described via the moving jum p forms of conservation laws. As a result, local plasticity and damage models, that are formulated based on thermodynamic restrictions, are still valid without invoking higher order terms, and simple integratio n schemes can be designed for the rate forms of constitutive models. T o resolve localized large deformations and subsequent cracking, an eff icient structural solution scheme is given for Static and dynamic prob lems.