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How to calculate bulk modulus K of MAT 77H

    • longt8


      I am using MAT 77H now and I am trying to figure out the equation to calculate the bulk modulus K of volumetric strain energy term in Fig.3.

      From Fig1, In the MAT 77H, it seems that the system determines bulk modulus K in Fig.3 based on the NV(Poisson ratio) and the second row parameters:

    • Andreas Koutras
      Ansys Employee

      For the hyperelastic material MAT_077H the bulk modulus is calculated as
      and the pressure is
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