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Recent content by tuss

  1. tuss

    Node mass in ABAQUS

    I have a "dummy" node just to apply the prescribed displacement at. This node is connected to one of the boundaries by a set of equations. If I just apply the prescribed displacement directly on the whole boundary, I will not obtain correct boundary conditions.
  2. tuss

    Node mass in ABAQUS

    Hi, When I am trying to run a model in ABAQUS Explicit, I get the following error message: "Node 50000 has zero mass but not all spatial degrees of freedom are fully constrained at this node. Please assign a physically reasonable mass to this node." But how do I do that? I haven't been able to...
  3. tuss

    Subroutine HKSmain in abaqus

    Thank you! Knowing what subroutine to use is a big step forward...
  4. tuss

    Subroutine HKSmain in abaqus

    When I try to use the subroutine HKSMAIN in abaqus6.5 I get the following error message: "User postprocessing program should be defined as "SUBROUTINE ABQMAIN"" Now, the thing is that I only have the manual for abaqus6.4 and wonder if there may have been some change regarding this. The manual...
  5. tuss

    Collapse load for an in-plane loaded panel

    Thank you for your answers! However, I accidently wrote that I wanted the buckling load for the panel which was not correct, I just wanted the applied load corresponding to the prescribed displacement. The buckling load (for the first eigenmode) I achieved from a buckling analysis by...
  6. tuss

    Collapse load for an in-plane loaded panel

    Due to symmetry I have modelled only a quarter of a sandwich panel, loaded in plane in one direction. To apply the load I have used a prescribed displacement. When I then want to find the corresponding load, I have summarised the reaction forces in every node on the loaded edge. However, because...

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