The finite element reliability method is used to study the evolution of localized damage in concrete considering a random damage threshold and random boundary constraints. The difference between deformation measures of selected locations on the solid is used as a…
The finite element reliability method is used to study the evolution of localized damage in concrete considering a random damage threshold and random boundary constraints. The difference between deformation measures of selected locations on the solid is used as a state function at dif- ferent stages of the equilibrium path. The concrete fracture is described by means of a gradient-enhanced damage model. The boundary constraints are imposed through Lagrange multipliers. The influence of the horizon- tality of the upper loading plate in a direct tension test is presented as an example.