期刊論文
| 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 | en |
| ISSN | 1727-7191 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 | 是 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | 電子版 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/97365 ) |