Transient response of a finite carck upon diffraction of a horizontally polarized shear wave
學年 84
學期 1
發表日期 1995-12-08
作品名稱 Transient response of a finite carck upon diffraction of a horizontally polarized shear wave
作品名稱（其他語言） 平面剪力波對有限長度裂紋之暫態效應解析
著者 應宜雄; Ing, Yi-shyong; 馬劍清; Ma, Chien-ching
作品所屬單位 淡江大學航空太空工程學系
出版者 臺北市：中華民國力學學會
會議名稱 中華民國第十九屆全國力學會議研討會
會議地點 桃園縣, 臺灣
摘要 Abstract- In this study, the transient response for diffraction of a horizontally polarized shear wave of arbitrary shape by a finite crack in an elastic solid is investigated. In analyzing .this problem, an infinite number of diffracted waves generated by two crack tips must be take into account and it will make the analysis extremely difficult. The solutions are determined by superposition of proposed fundamental solutions in the Laplace transform domain. The fundamental solutions to be used are the problems for applying exponentially distributed traction and screw dislocation on the crack faces and along the crack tip line, respectively. The exact transient closed form solutions of dynamic stress intensity factor for two crack tips are obtained and expressed in very simple and compact formulations. The solutions are valid for an infinite length of time and have accounte~ for the contributions of an infinite number of diffracted waves. Numerical results for both tips are evaluated which indicate that the dynamic stress intensity factors will oscillate near the correspondent static values after the first three waves have passed' the specified crack tip.
關鍵字 fracture;a finite crack;stress intensity factor
語言 en
收錄於
會議性質 國內
校內研討會地點
研討會時間 19951208~19951209
通訊作者 中華民國力學學會; 中正理工學院
國別 TWN
公開徵稿 Y
出版型式
出處 中華民國力學學會第十九屆全國力學會議論文集(三)=Proceedings of the 19th National Conference on Theoretical and Applied Mechanics (III)， 頁 289-296
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