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Recent content by CivilEngineerNOR

  1. CivilEngineerNOR

    Buckling of pipe on nonlinear elastic foundation

    I have tried with a small stiffness after the breaking point at 0.2mm, but have only been able to use a stiffness down to 50% of the original stiffness (way to high). I have also tried to modell the springs force/displacement relation as a piecewise curve with decreasing stiffness, but it did...
  2. CivilEngineerNOR

    Buckling of pipe on nonlinear elastic foundation

    Hi, I am trying to model axial buckling of a pipe buried in sand, in Abaqus. The pipe is modelled with 2D beamelements B21 and the sand is modelled with springelement SPRING1 attached to the beam in one end and the "ground" in the other. I have used about 100 springs along the 3 m long pipe and...
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