Abstract
Numerical investigation on the interaction between a coated piezoelectric fiber-shaped sensor and a near-by crack has been carried out in the current study. Both the crack and the piezoelectric inclusion (the sensor) are embedded in an infinite isotropic non-piezoelectric elastic matrix. Two typical mechanical loading cases, i.e., the tensile loading and pure shear loading with a far-field anti-plane electrical field are analyzed. Finite element analysis is employed to compute the stress and deformation for the coupled electro-mechanical problem. The effect of the coating layer thickness on the stress intensity factor of the crack is studied in detail. Results also show that the far field electric loading, the shear modulus of the coating layer and the matrix have great influence on the fracture behavior of the crack.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 691-706 |
| Number of pages | 16 |
| Journal | Finite elements in analysis and design |
| Volume | 38 |
| Issue number | 8 |
| DOIs | |
| State | Published - Jun 1 2002 |
| Externally published | Yes |
Keywords
- Coating layer
- Crack
- Interaction
- Piezoelectric inclusion
- Stress intensity factor