Coupling Loss
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.
Coupling Loss Settings
Select a Coupling lossLoss factor for e or Rayleigh damping.
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 ηe in a 3-by-6 matrix.
For Rayleigh damping enter a Stiffness damping parameter βdC.
Location in User Interface
Context Menus
Ribbon
Physics tab with Piezoelectric Material node selected in the model tree: