Simulation crack growth in the Koyna dam under seismic load in Abaqus

In this example we consider an analysis of the Koyna dam, which was subjected to an earthquake of magnitude 6.5 on the Richter scale on December 11, 1967. The example illustrates a typical application of the concrete damage base on traction separation laws. Dam is modeled as two dimensional part with damage material.Prior to the dynamic simulation of the earthquake, the dam is subjected to gravity loading and hydrostatic pressure. In the Abaqus/Standard analysis these loads are specified in two consecutive static steps, using a distributed load with the load type labels GRAV (for the gravity load) in the first step and HP (for the hydrostatic pressure) in the second step.To model physical crack growth XFEM procedure has been selected and during analysis base on tensile damage which mentioned in Abaqus documentation, crack propagation inside the dam and you can see some figures of this simulation at below

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