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See Material data definition for more information.

If this parameter is omitted, it is assumed that the failure criterion depends only on temperature. Set this parameter equal to the number of field variable dependencies included in the definition of the failure criterion, in addition to temperature. It cannot be greater than 2 for plane stress and shell elements, and it cannot be greater than 3 for three-dimensional, plane strain, and axisymmetric elements. The material library in ABAQUS also includes a constitutive model for concrete based on theories of scalar plastic damage, described in Damaged plasticity model for concrete and other quasi-brittle materials, Section 4.5.2, which is available in ABAQUS/Standard and. source codes and simulation data are used to simulate brittle fracture in. The value for the CRACKS parameter can only be 1 for beam or truss elements. This section describes the cracking constitutive model provided in ABAQUS/Explicit for concrete and other brittle materials. The implementation is carried out using a feature in the ABAQUS software.

Set CRACKS= 3 to indicate that an element will be removed when all three possible direct cracking strain (or displacement) components reach the failure value. Set CRACKS= 2 to indicate that an element will be removed when any two direct cracking strain (or displacement) components reach the failure value. Set CRACKS= 1 (default) to indicate that an element will be removed when any local direct cracking strain (or displacement) component reaches the failure value.