October 4, 2017 at 12:20 pmpglAnsys Employee
The stiffness matrix defined in Engineering Data should be a positive definite one. Being positive definite means that the following expression must equal a positive number ! 1.0 - NUXY2EX/EY - NUYZ2EY/EZ - NUXZ*2EX/EZ - 2.0NUXYNUYZNUXZEX/EZ
October 4, 2017 at 2:39 pmnselvaraAnsys Employee
Why the anisotropic stiffness matrix in Engineering Data is yellow?
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