The Coupling Loss subnode allows you to model losses in the piezoelectric coupling in a Piezoelectric Material, either by using the loss factor material data for the coupling matrix or as Rayleigh proportional damping.
Select a Coupling loss — Loss factor for e (the default) or Rayleigh damping.
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For Loss factor for e select a Loss factor for coupling matrix e from the list. Select User defined to enter values or expressions for ηein a 3-by-6 matrix.
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For Rayleigh damping enter a Stiffness damping parameterβdC.
