Abstract
Recent experimental information has indicated that (a) the post-peak behaviour of concrete is dependent on testing techniques to such an extent that its most realistic description is a complete and immediate loss of load-carrying capacity as soon as a peak level is exceeded, and (b) such “brittle” concrete behaviour at the material level is compatible with the observed ductile behaviour exhibited by reinforced concrete structural members. A model of concrete behaviour is proposed, therefore, which reflects both the above experimental information and the generally accepted view that the nonlinear behaviour of concrete is dictated by internal fracture processes. This model, termed appropriately brittle fracturing, is in compliance with previous work describing the fracture mechanism of concrete under short-term generalised stress.
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