Materials

Materials used are summarized here. Make sure the values you are using are identical.

PZT8

rho = 7600 kg·m-3 ; s11E = 11.1·10-12 ; s12E = -3.7·10-12 ; s12E = -4.8·10-12 ; s33E = 13.9·10-12 ; s44E = 35.0·10-12 N/m2
d15 = 400·10-12 ; d31 = -93·10-12 ; d33 = 218·10-12 C/N
epsilon11T = 1100 ; epsilon11T = 1100
deltam = 0.001 ; deltap = 0 ; deltad = 0.004

STEEL

E = 210·109 N/m2 ; nu = 0.285 ; rho = 7800 kg·m-3
E" = 0 ; nu" = 0

ALUMINUM

E = 71.4·109 N/m2 ; nu = 0.344 ; rho = 2780 kg·m-3
E" = 0 ; nu" = 0

WATER

K = 2.22·109 N/m2 ; rho = 1000 kg·m-3
K" = 0
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