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Bolt pretensions and gasket – nonlinear material model

    • mrivero
      Subscriber

      Hello everyone, 

      I am trying modelling compression of a gasket between two plates caused by bolt pretensions. The assembly consist of two external plates bounded by four bolts (simplified modelling by beam connections), between them there are a gasket and a layer which is thinner than the gasket. The objective is compress the assembly to the gasket's thickness will be equal than the layer's thickness. 

      I can not run the simulation because an error message comes up ("The L-2 norm of the residual force overflowed. This may be caused by PRED,ON or birth/dead elements. Please use PRED,OFF and try again.")

      I have tried changed the mesh, the contacts, enter the command "PRED,OFF", adjustment... I don't know what to do to solve the problem. 
       
      I'd really appreciate any help.
       
      Best regards.
       
    • Ashish Khemka
      Forum Moderator

      Hi,

      Please see if the following link helps: Error static structural non linear simulation (ansys.com)

      Regards,

      Ashish Khemka

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