Analysis compares computational cost and accuracy of two tetrahedral finite element methods in large deformation scenarios, suggesting trade-offs.
The performance of the two next-gen tetrahedral smoothed finite element methods (EC-SSE-SRI-T4 and FC-SSE-SRI-T4) is evaluated in nearly incompressible large deformation analyses. There is a trade-off between computational cost and accuracy; thus, using FC-SSE-SRI-T4 instead of EC-SSE-SRI-T4 is expected to reduce computational cost at the loss of certain accuracy in deviatoric strain/stress. By comparing the analysis results with an initial Poisson’s ratio of 0.49, the pros and cons of the two formulations are clarified.
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Yuki Onishi (2025) studied this question.
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