Verification of nonlinear finite element analysis using open source CAE

Abstract

In order to validate the accuracy of finite element nonlinear analysis, it is desired to analytically simulate standardized material tests and then compare the results with actual tests. As part of this effort, we aim to simulate the deformation and stress of a torsion test, which evaluates the shearing strength of a shaft. To do this, we model the test specimen as a round bar shaft using 3D solid elements, which lack rotational displacement degrees of freedom. In this study, we used Salome-Meca, including Code Aster, an open-source CAE software, to simulate a torsion test and discussed the issues involved.