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Error message with hyperelastic Mooney-Rivlin option

Error message with hyperelastic Mooney-Rivlin option

Error message with hyperelastic Mooney-Rivlin option

(OP)
Hi,

I’m doing some analysis with SOLID186 and the Mooney-Rivlin hyperelastic material option (TB,HYPER,1,,5,MOONEY). I have a tetrahedral mesh. Ansys gives me this error:     

‘Error related to regular shapes of 3D elements with mixed u/P formulation, it should never happen.’

By the way, I’ve checked my mesh (ESCHECK) and this one is good (no shape warning or error). Also note that the solution started with a bisection.

Thanks,

Pierre

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