Abstract
Piezoelectric effects are extensively utilized in electric ceramic devices as well as high-power ultrasonic devices. The piezoelectric components work under elastic strain and electric fields. For the reliable service lifetime predictions of the components, an electro-fracture mechanics approach has to be considered. Piezoelectric analysis of crack problems is an important, basic subject to establish the electro-fracture mechanics in future. Following the dynamic theory of linear piezoelectricity, we consider the scattering of normally incident longitudinal waves by a finite crack in an infinite orthotropic piezoelectric solid. The problem is formulated by means of integral transforms, and reduced to the solution of a Fredholm integral equation of the second kind. Numerical calculations are carried out and dynamic stress and electric field intensity factors are obtained for piezoelectric ceramics.
| Original language | English |
|---|---|
| Pages (from-to) | 480-484 |
| Number of pages | 5 |
| Journal | Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |
| Volume | 57 |
| Issue number | 535 |
| DOIs | |
| Publication status | Published - 1991 |
Keywords
- Elasticity
- Electric Field Intensity Factor
- Electro-Fracture Mechanics
- Electroelastic Wave
- Finite Crack
- Integral Transform
- Piezoelectric Ceramics
- Stress Intensity Factor
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering