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  1. ruham

    Convergency Problems simulating a crack at a material interface with nlgeom on

    Hi all, I'm trying to get the j-integral of a crack at a material interface. I have a stiff linear elastic material on the one side and a hyperelastic material on the other side. I model a seam crack at the interface of these materials so I can calculate the j-integral. It works very fine if I...
  2. ruham

    Contour Integral at interface between different materials

    Hi all, I need to calculate the j-integral at the interface of two different materials with significally different stiffnesses. If I use two materials with nearly the same stiffness in this model the analysis works well. But if the stiffnesses differ significally the analysis doesn't converge...
  3. ruham

    J-integral

    Dear all, I`m trying to calculate the j-integral with 3D-Elements and I keep getting the error message "The following contour integral objects contains regions that cannot be mapped into layers of node sets". I`ve made circular mesh around the crack tip with quadratic wedge elements in the...

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