Abstract
The damage of unallowable blast induced vibrations on the concrete structures results in a decrease in the safety of its structures. This paper develops a three dimensional anisotropic dynamic damage model for Dagangshan arch dam subjected to blast loading. The multiple damage failure criteria are adopted as the failure criteria of the dynamic damage evolution of concrete. From the simulation of the dynamic damage process in the arch dam due to the blast loading, some process fields of the dynamic displacement, the dynamic stress, dynamic damage distribution and other necessary information for the safety evaluation are obtained. The results obtained using the proposed model show that the nonlinear behavior of concrete dams can be satisfactorily predicted. This will provide a reasonable theoretical support on the safety evaluation of the capability of concrete arch dams against blast loading and useful information for further research in these areas.
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