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Discrepancy between linear and non linear simulation results

Question asked by Ong Xing Qiang on Dec 22, 2016
Latest reply on Dec 25, 2016 by Ong Xing Qiang

Hi, I am trying to run simulations on a platform to find the displacement of it when a fixed force is acting on it. I tried both linear and non-linear simulation on it but I got different results from them. In theory, the results should be similar since it is below the yield stress and the resultant displacement is relatively small. Thus, I am wondering as to why such a discrepancy occur and which simulation is accurate and whether I made any mistakes with the simulations. Below are pictures of the platform and the results from linear and non linear simulations.

2D platform.png

linear displacement result.pngnonlinear displacement result.png

Thank You.