教師資料查詢 | 類別: 期刊論文 | 教師: 應宜雄 ING YI-SHYONG (瀏覽個人網頁)

標題:Dynamic Crack Propagation in Piezoelectric Materials Subjected to Dynamic Body Forces for Vacuum Boundary
學年96
學期1
出版(發表)日期2007/09/01
作品名稱Dynamic Crack Propagation in Piezoelectric Materials Subjected to Dynamic Body Forces for Vacuum Boundary
作品名稱(其他語言)
著者Chen, Xi-Hong; Ma, Chien-Ching; Ing, Yi-Shyong
單位淡江大學航空太空工程學系
出版者Cambridge: Cambridge University Press
著錄名稱、卷期、頁數Journal of Mechanics 23(3), pp.229-238
摘要The problem of a semi-infinite propagating crack in the piezoelectric material subjected to a dynamic anti-plane concentrated body force is investigated in the present study. It is assumed that between the growing crack surfaces there is a permeable vacuum free space, in which the electrostatic potential is nonzero. It is noted that this problem has characteristic lengths and a direct attempt towards solving this problem by transform and Wiener-Hopf techniques [1] is not applicable. This paper proposes a new fundamental solution for propagating crack in the piezoelectric material and the transient response of the propagating crack is determined by superposition of the fundamental solution in the Laplace transform domain. The fundamental solution represents the responses of applying exponentially distributed loadings in the Laplace transform domain on the propagating crack surface. Exact analytical transient solutions for the dynamic stress intensity factor and the dynamic electric displacement intensity factor are obtained by using the Cagniard-de Hoop method [2,3] of Laplace inversion and are expressed in explicit forms. Finally, numerical results based on analytical solutions are calculated and are discussed in detail.
關鍵字Crack propagation; Piezoelectric material; Superposition; Dynamic stress intensity factor; Dynamic electric displacement intensity factor
語言英文
ISSN1727-7191;1811-8216
期刊性質國內
收錄於SCI;EI
產學合作
通訊作者Ma, Chien-Ching
審稿制度
國別英國
公開徵稿
出版型式電子版;紙本
相關連結
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