Transient response of a surface crack subjected to dynamic anti-plane concentrated loadings
學年 89
學期 2
出版（發表）日期 2001-06-01
作品名稱 Transient response of a surface crack subjected to dynamic anti-plane concentrated loadings
作品名稱（其他語言）
著者 Ing, Yi-Shyong; Ma, Chien-Ching
單位 淡江大學航空太空工程學系
出版者 Dordrecht: Springer Netherlands
著錄名稱、卷期、頁數 International Journal of Fracture 109(3), pp.239-261
摘要 In this study, the transient response of a surface crack in an elastic solid subjected to dynamic anti-plane concentrated loadings is investigated. The angles of the surface crack and the half-plane are 60° and 90°. In analyzing this problem, an infinite number of diffracted and reflected waves generated by the crack tip and edge boundaries must be taken into account and it will make the analysis extremely difficult. The solutions are determined by superposition of the proposed fundamental solution in the Laplace transform domain and by using the method of image. The fundamental solution to be used is the problem for applying exponentially distributed traction on the crack faces. The exact transient solutions of dynamic stress intensity factor are obtained and expressed in formulations of series form. The solutions are valid for an infinite length of time and have accounted for the contribution of an infinite number of diffracted waves. The explicit value of the dynamic overshot for the perpendicular surface crack is obtained from the analysis. Numerical results are evaluated which indicate that the dynamic stress intensity factors will oscillate near the correspondent static values after the first three or six waves have passed the crack tip.
關鍵字 Elasticity; Laplace transforms; Loads (forces); Stress analysis; Stress intensity factors; Traction (friction); Elastic solids; Cracks; crack propagation; stress intensity factor; transient response
語言 en
ISSN 0376-9429
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度
國別 NLD
公開徵稿
出版型式 紙本
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