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[NFX] Torsional buckling of cantilever - Geometry Nonlinear Static Analysis

  • midas NFX
  • Intermediate level
  • 2014.04.20

Figure 1 shows a cantilever structure subjected to a point load P in the negative Z-direction at the neutral axis of the beam at the point E. A conservative load with no initial imperfection makes a linear buckling problem whereas a non-conservative load that follows the deformation with an initial imperfection produces instability. The cantilever structure is discretized using shell elements. The geometric imperfection is given in Table 1.


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