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General Mechanical

General Mechanical

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  3. Anisotropic stiffness matrix in Engineering Data

Anisotropic stiffness matrix in Engineering Data

    • October 4, 2017 at 12:20 pm
      pgl
      Ansys 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 pm
      nselvara
      Ansys Employee

      Why the anisotropic stiffness matrix in Engineering Data is yellow?

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