10.18 Electric_Model: Generalized Electric Model

ELECTRIC

Material_name = ELECTRIC

Material_set_number = mset , etc...

The generalized electric model is defined as follows.

Note Variable Name Type Default Description

Material_set_number integer [1] Material set number Numat

Material_type list [linear] Material type:

linear / nonlinear Restricted to linear in current implementation.

• Dielectric Constants

Permittivity list [none] Permittivity

Type list [*] Form of permittivity matrix:

isotropic / anisotropic If isotropic only k₁₁ need be specified.

k_11 real [0.0] Permittivity k₁₁

k_22 real [0.0] Permittivity k₂₂

k_33 real [0.0] Permittivity k₃₃

k_12 real [0.0] Permittivity k₁₂

k_23 real [0.0] Permittivity k₂₃

k_13 real [0.0] Permittivity k₁₃

• Piezoelectric Constants

Piezoelectric_constants list [none] Piezoelectric constants

e_11 real [0.0] Piezoelectric constant e₁₁

e_21 real [0.0] Piezoelectric constant e₂₁

e_31 real [0.0] Piezoelectric constant e₃₁

e_12 real [0.0] Piezoelectric constant e₁₂

. . . .

etc. . . .

. . . .

e_36 real [0.0] Piezoelectric constant e₃₆

EXAMPLE

Define_Material_Model /

name = "dummy" /

number_of_material_sets = 1

Electric_Model /

material_type = linear /

material_name = electric

material_set_number = 1 /

permittivity /

type = isotropic /

k_11 = 1.00e+3 /

piezoelectric_constants /

e_31 = 31, e_32 = 31, e_33 = 33, e_24 = 15, e_15 = 15

Notes . .