I am doing the ansys simulation of the piezoelectric crystal, but where can I find the piezoelectric coefficient, elastic coefficient and dielectric coefficient?

These parameters are all your known quantities, no matter what analysis you do, you need to get them yourself, and find your professional knowledge corresponding to the specific quantities needed by ansys in this simulation!

Give you a reference:

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Static analysis of piezoelectric bimorph beam

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L= 100e-3！ Length, meters

H=0.5e-3！ Single layer thickness, m

V= 100！ Electrode voltage, volts

Uy= 10.e-3！ Tip displacement, m

E 1=2.0e9！ N/m 2 Young's modulus

NU 12=0.29！ Poisson's ratio

G 12=0.775e9！ Shear modulus, n/m 2

d3 1=2.2e- 1 1！ Piezoelectric strain coefficient, C/N

d32=0.3e- 1 1

d33=-3.0e- 1 1

ept33= 12！ Relative dielectric constant under constant stress

Local, 1 1! Coordinate. Lower system: polar axis +Y

Local, 12,,,, 180! Coordinate. Upper system: polar axis -Y

csys， 1 1！ Start coordinates. System 1 1

Rectangular, 0, l, -H, 0! Create an area for the lower level.

Rectangular, 0, l, 0, h! Create an area for the upper layer

Ah, everyone! adhesive coating

esize，H！ Specifies the element length.

et， 1，PLANE223， 100 1，，0！ Two-dimensional piezoelectric element, plane stress

! Elastic matrix, piezoelectric coefficient matrix and dielectric constant are all necessary properties in piezoelectric analysis.

tb，ANEL， 1，，， 1！ Anisotropic elastic matrix; Defined as the elastic flexibility matrix of flexible materials.

tbda， 1， 1/E 1，-NU 12/E 1，-NU 12/E 1

tbda，7， 1/E 1，-NU 12/E 1

tbda， 12， 1/E 1

tbda， 16， 1/G 12

tb，PIEZ， 1，，， 1！ Piezoelectric strain matrix

tbda，2，d3 1

tbda，5，d33

tbda，8，d32

tb，DPER， 1，，， 1！ Dielectric constant under constant stress

tbdata， 1，ept33，ept33

Tblist, all of them! Lists the input and converted material matrices.