壓電界層裂紋之動力破壞解析

機構典藏 > College of Engineering > Graduate Institute & Department of Aerospace Engineering > Proceeding > Item 987654321/93266

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Title:	壓電界層裂紋之動力破壞解析
Other Titles:	Dynamic Fracture Analysis of an Interface Crack in piezoelectric bimaterials
Authors:	應宜雄;陳冠志
Contributors:	淡江大學航空太空工程學系
Keywords:	壓電材料;界面裂紋;強度因子;piezoelectric material;interface crack;intensity factor
Date:	2008-12
Issue Date:	2013-12-13 15:52:41 (UTC+8)
Publisher:	臺北市：中華民國航空太空學會
Abstract:	本文研究含電極邊界之界面裂紋的壓電複合材料動力破壞問題，解析一含半無限長界面裂紋之六角雙異質壓電材料複合層板，於裂紋面上施載反平面動力點載荷之暫態效應。本文使用積分轉換法與Wiener-Hopf技巧推導壓電材料於拉普拉斯轉換域中之指數型基本解，接著利用疊加方式求出承受點載荷時於一次拉普拉斯轉換域中的解，再使用Cagniard-de Hoop 方法來作拉普拉斯逆轉換得到時域中的全場; 應力強度因子與電位移強度因子的暫態解析解，最後，將針對應力與電位移之暫態解做詳細的計算與討論。 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.
Relation:	中華民國航空太空學會第五十屆年會暨學術研討會國科會航太學門成果發表會會議首冊暨論文摘要集，頁107
Appears in Collections:	[Graduate Institute & Department of Aerospace Engineering] Proceeding

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