Transient response of an interface crack subjected to dynamic anti-plane concentrated loading in piezoelectric bimaterials

• Main Authors: Kuan-Chih Chen, 陳冠志
• Other Authors: Yi-Shyong Ing
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/86889959635315110499

碩士 === 淡江大學 === 航空太空工程學系碩士班 === 96 === In this study, the transient response of a semi-infinite interface crack between two dissimilar piezoelectric materials with the electrode boundary condition is investigated. The useful fundamental solutions are derived and the solutions can be determined by superposition of the fundamental solutions in the Laplace transform domain. The proposed fundamental problem is the problem of applying exponentially distributed traction (in Laplace transform domain) on the interface crack faces. The Cagniard-de Hoop method of Laplace inversion is used to obtain the transient solution in time domain. Exact transient Full-Field solution and exact transient solution of intensity factors to the problem with concentrated loads are derived. Finally, numerical results are evaluated and discussed in detail.