XFEM convergence problem(the problem has converged, along Meshsize not...)
Hallo,
i have the following problem, when i refine the mesh of Mode I fracture with XFEM, the Force Displacement curve seems not to converge.
Mesh Size:
15*15
25*25
51*51
75*75
the reaction force is going to be smaller and smaller...
can somebody help me? thank u very much!!