DAMAGE AND FRACTURE PROCESS IN CONCRETE A COMBINED APPROACH

摘要

There are three distinctive theories to describe damage and failure process in concrete acting independently: continuous damage mechanics, theory of plasticity and fracture mechanics. But, the process of concrete failure appears to be too complex and combined approach become more suitable. In this paper a combined approach to the damage and fracture process in concrete is proposed, based on the all three mentioned theories. Stress state and history are pointed out as more important rather than modeling appropriate type of material in order to define the general failure criterium.