Electro-mechanical load transfer from a fiber in a 1–3 piezocomposite with an imperfect interface
✍ Scribed by Y. Sapsathiarn; T. Senjuntichai; R.K.N.D. Rajapakse
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 792 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1359-8368
No coin nor oath required. For personal study only.
✦ Synopsis
This paper considers the electro-mechanical interaction between a fiber and a matrix material in a 1-3 piezocomposite due to an axial load and electric charge applied to the fiber. The fiber-matrix interface is assumed to be mechanically imperfect and is represented by a spring-factor model. The interface is either electrically open-or short-circuited. The analytical general solutions corresponding to an infinite piezoelectric fiber with a vertical body force and an electric body charge are derived by using Fourier integral transforms. These solutions together with the analytical general solutions for a transversely isotropic elastic medium are used to formulate the fiber-matrix interaction problem. Selected numerical results for the fiber axial force and vertical electric field, and interfacial stresses are presented for representative 1-3 piezocomposites. The influence of the interface stiffness on the electro-mechanical load diffusion is also examined.