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Recent content by joncardenas

  1. joncardenas

    Buckling Analysis of a rectangular plate

    Yes, thanks for the information. Is it possible to use the *IMPERFECTION command to input imperfection into the dynamic explicit analysis as follow: *IMPERFECTION, FILE=Job-0_Initial_Imperfection, STEP=1 1,1 ** STEP: Step-2 ** *Step, name=Step-2, nlgeom=YES *Dynamic, Explicit , 10. etc etc etc...
  2. joncardenas

    Buckling Analysis of a rectangular plate

    JSDaniel I was able to figure out and I did an initial imperfection in the middle of the plate and ran a static, riks and was able to get a load displacement curve. Now I want to match up this using a dynamic explicit analysis. Can you please tell me how to put the compressive force(load...
  3. joncardenas

    Buckling Analysis of a rectangular plate

    JSDaniel I ran a (static,riks) with lateral distributed load and compression force but the reaction force(Compressive force Ny) is larger than the Ncr given by the linear perturbation. Shouldn't this analysis be aborted when reaction force reaches Ncr for the first buckling load
  4. joncardenas

    Buckling Analysis of a rectangular plate

    Sorry, on the last sentence should be: Linear perturbation does NOT calculate load or displacements only eigenvalue and eigenmode.
  5. joncardenas

    Buckling Analysis of a rectangular plate

    Hi guys, I hope you can help with this problem. I have modeled a thin rectangular plate(Kirchhoff plate)and chosen S4R5 shell elements for my mesh. I did a linear perturbation and the simply-supported plate which gives me the correct eigenvalue and eigenshapes comparing with analytical results...
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