Module 1: Overview of Structural Health Monitoring (SHM)
  Lecture 11: Smart Sensor and Actuator Technologies for SHM
 

 

A list of material properties of PZT and PVDF is presented with Aluminum for the sake of comparison in the Table 11.2.

Table 11.2: Material properties of different piezoelectrics and aluminum

Material property

PVDF

PZT

Aluminum

Elastic modulus, GPa

2.0

63.0

73.0

Shear modulus,  GPa

0.77

2.33

45.6

Density, ρ  (Kg / m3)

1800

7600

2700

Poisson’s  ratio,

0.29

0.35

0.3

Piezoelectric coupling constant,

2.2

37.0

0.0

Maximum free strain available, ε ppm

10

2000

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