Explicit transient solutions for a mode III crack subjected to dynamic concentrated loading in a piezoelectric material
學年 92
學期 2
出版（發表）日期 2004-07-01
作品名稱 Explicit transient solutions for a mode III crack subjected to dynamic concentrated loading in a piezoelectric material
作品名稱（其他語言）
著者 Ing, Yi-Shyong; Wang, Mau-Jung
單位 淡江大學航空太空工程學系
出版者 Kidlington: Pergamon
著錄名稱、卷期、頁數 International Journal of Solids and Structures 41(14), pp.3849-3864
摘要 In this study, the transient response of a semi-infinite crack subjected to dynamic anti-plane concentrated loading in a hexagonal piezoelectric medium (6 mm) is investigated. The crack surfaces are assumed to behave as though covered with a conducting electrode. In order to give an insight into the effect of the electrode boundary condition, a simple half-plane problem is also discussed in the paper. A new fundamental solution for piezoelectric materials is proposed and the transient solution for the cracked body is determined by superposition of the fundamental solution in the Laplace transform domain. The fundamental solution to be used is the problem of applying exponentially distributed traction on the crack faces in the Laplace transform domain. Exact analytical transient solutions for the dynamic stress intensity factor, the dynamic electric displacement intensity factor, and the dynamic energy release rate are obtained by using the Cagniard method of Laplace inversion and are expressed in explicit forms. Finally, numerical results for the transient solutions are evaluated and discussed in detail.
關鍵字 Crack propagation; Electrodes; Laplace transforms; Stress analysis; Transients; Anti-plane concentrated loading; Mode III cracks; Semi-infinite cracks; Transient solutions; Piezoelectric materials; fracture mechanics
語言 en
ISSN 0020-7683
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Ing, Yi-Shyong
審稿制度
國別 GBR
公開徵稿
出版型式 紙本
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