Bulk Data Entry This parameter is used to define the vacuum permittivity for piezoelectric materials.

Parameter Values Description
VAPMTV Real > 0.0

No default

Value of the vacuum permittivity.


  1. This parameter is required when relative permittivity is defined in a MAT1PT or MAT2PT Bulk Data Entry.
  2. For more information, refer to Piezoelectric Analysis in the User Guide.