Electro-mechanical behavior of an electrode interacting with a hole

• Main Authors: Li-YaoHsu, 許禮堯
• Other Authors: Jen-Chun Sung
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/53508795249699678426

碩士 === 國立成功大學 === 土木工程學系 === 104 === This thesis is to investigate the electro-mechanical behavior of an electrode interacting with a hole in an infinite piezoelectric material. This problem can be analyzed by superposition of two simple problems. First problem is a piezoelectric material containing a hole under uniform traction at infinity. Second problem is a piezoelectric material containing a hole subjected to a distributed forces. By combining this two problems, we can obtain an equation matching the boundary condition of the original problem. We use Green’s function to describe the problem so that we can get a system of singular integral equations for the unknown distributed forces. Next, we use the numerical method to calculate the solutions of the singular integral equations and the generalized stress intensity factors (SIFs) at the electrode tips. This thesis considers the piezoelectric material under three different kinds of force. The influence of the distant between electrode and hole, the shape of elliptic hole, and the inclined angle of electrode on the SIFs are investigated and results are discussed.