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  1. FrSpace

    Ground check comparison 2D Shell and 3D solid

    Hi all, I don't understand my ground check result in NX Nastran.. Here my simple study case : I try to have the same ground check result with 2D shell mesh and 3D tetra mesh. 1) With tetra elements : - Fem and results : *** USER INFORMATION MESSAGE 7570 (GPWG1S) RESULTS OF RIGID...
  2. FrSpace

    Ground check FAIL in NX Nastran

    Hi everybody, I have some problem with my model validation. Specially with the groundcheck : *** USER INFORMATION MESSAGE 7570 (GPWG1S) RESULTS OF RIGID BODY CHECKS OF MATRIX KGG (G-SET) FOLLOW: PRINT RESULTS IN ALL SIX DIRECTIONS AGAINST THE LIMIT OF 1.000000E-03...

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