Material Constants

PZT

Steel

Foam

G12 (N/m2)

24.8 × 10 9

78.7 × 10 9

9.99 × 10 6

G13 (N/m2)

24.8 × 10 9

78.7 × 10 9

9.99 × 10 6

G23 (N/m2)

24.8 × 10 9

78.7 × 10 9

9.99 × 10 6

d31 (m/V)

0.166 × 10 9

-

-

d15 (m/V)

1.34 × 10 9

-

-

Q11 (N/m2)

68.4 × 10 9

211 × 10 9

85.5 × 10 6

Q22 (N/m2)

68.4 × 10 9

211 × 10 9

85.5 × 10 6

Q12 (N/m2)

12.6 × 10 9

2.88 × 10 9

75.6 × 10 6

Q66 (N/m2)

12.6 × 10 9

78.7 × 10 9

9.99 × 10 6