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 fracture analysis of finite cracks by horizontally polarized shear waves in anisotropic solids
學年91
學期1
出版(發表)日期2003/01/01
作品名稱Dynamic fracture analysis of finite cracks by horizontally polarized shear waves in anisotropic solids
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Kidlington: Pergamon
著錄名稱、卷期、頁數Journal of the Mechanics and Physics of Solids 51(11-12), pp.1987-2021
摘要In this study, the dynamic fracture analysis of 'nite cracks in anisotropic elastic solids subjected
to incident horizontally polarized shear waves is investigated.The in2uence of 'nite length
of the crack on the dynamic stress intensity factor will be discussed in detail.A linear coordinate
transformation is introduced to simplify the problem.The linear coordinate transformation
reduces the anisotropic 'nite crack problem to an equivalent isotropic problem.An alternative
methodology di5erent from the conventional superposition method is developed to construct the
di5racted 'elds.The transient solutions are determined by superposition of two proposed fundamental
solutions in the Laplace transform domain.For stationary cracks, the exact analytical
solutions of dynamic stress intensity factors for two crack tips are obtained in explicit forms
and have accounted for the contributions of all the di5racted waves.For a step-stress wave, the
maximum dynamic overshot of stress intensity factor is 4= for any combination of material
constants and incident angles.If the stress intensity factor reaches the fracture toughness of the
material, the two crack tips are assumed to propagate along the crack tip line with constant
subsonic velocities.The in2uence of the di5racted waves generated from the other crack tip on
the propagating crack tip is analyzed.It is shown in this study that the di5racted waves from the
other crack tip have signi'cant in2uence on the stress intensity factors for propagating cracks.
關鍵字Anisotropy; Crack propagation; Diffraction; Fracture mechanics; Fracture toughness; Laplace transforms; Shear waves; Stress analysis; Anisotropic materials; Transient waves; Cracks
語言英文
ISSN0022-5096
期刊性質國外
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
出版型式紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!