Hi, I’m working on validating my code with Ansys. As you can see in this topic , the displacements are quite close with only minor differences. However, for the von Mises stress, the discrepancy is larger: [von_mises_fenicsx_vs_ansys] I’ve been following this tutorial by @dokken . However, since I…

If the move data from Gauss points to the vertices of the mesh, there will definitely be discrepancies, even with the same deformation field. A discussion of potential issues have been touched upon in http://jsdokken.com/FEniCS-workshop/src/approximations.html and the additional information provi…

From your previous post, if you already have differences in displacement, the issue does not come from the stress interpolation which is only a post-processing step.

I get your point, but even with minor errors in displacements, it appears that the von Mises stress is significantly larger. Could this discrepancy be related to the way the stress is calculated and interpolate?

Comparative Analysis: Ansys vs. FEniCSx [von Mises in Linear Elasticity]

General

French_fries November 20, 2024, 6:26am 4

Hi, may I ask if you have solved this problem? I am encountering the same issue：The verification of thermoelastic von Mises stress

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Comparative Analysis: Ansys vs. FEniCSx [von Mises in Linear Elasticity]

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