Usually after analysis of metal and alloys based devices, the FEA results quality check in ANSYS is performed using
1) Prerr command in apdl
2) (smxb-smx)/smxb
But while using hyperelastic material model Mooney rivlin 5 parameter, these commands are not working in APDL. Is it so?
Second, what is the best method to avoid the spurious stress results in hyperelastic mooney rivlin models? Any alternative quality check to eliminate spurious stress elements similar to that of using prerr command based screening?
Also, an one element model based verification in ANSYS captures the isotropic and Mooney rivlin model difference pretty good to some extent in the stress-strain curve. But when the same verified mooney rivlin model is used for a real product, the stress predicted for a strain is almost double. So what is the quality check criteria in screening and avoiding such elements?
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