## 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 |
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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 Jan 1 |

## 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