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This operator calculates the following fracture mechanics quantities, in 2D and 3D for non-meshed cracks (method X- FEM):

• the rate of energy restoration by the theta method in the case of a linear or non-linear thermo-elastic problem [R7.02.01] and [R7.02.03], in statics or in dynamics [R7.02.02], and in elastoplasticity [R7.02.07];

• stress intensity factors \(\mathrm{K1}\), \(\mathrm{K2}\) and \(\mathrm{K3}\) using the method of singular displacements in the case of a linear thermo-elastic problem [R7.02.05];

• the maximization of \(G\) and \(\mathrm{K1}\) under limited constraints.

Before first use, it is advisable to refer to the corresponding reference documents and advice for use, in particular the document [U2.05.01].

This operator generates a table_sdaster concept.