https://scholars.lib.ntu.edu.tw/handle/123456789/65291
標題: | Dynamic Stress Intensity Factor for Subsurface Inclined Cracks | 作者: | Ma, Chien-Ching Chen, Szu-Kuzi |
公開日期: | 1994 | 來源出版物: | ASCE Journal of Engineering Mechanics | 摘要: | To gain insight into the phenomenon of the interaction of stress waves with material defect, the transient problem of a half-space containing a subsurface inclined semi-infinite crack subjected to dynamic antiplane loading on the boundary of the half-space is investigated in this study. The solutions are determined by superposition of the fundamental solution in the Laplace transform domain. The fundamental solution is the exponentially distributed traction on crack faces. The exact close form transient solutions of dynamic stress intensity factor are expressed explicitly in time domain. These solutions are valid for an infinite length of time and have accounted for the contributions coming from incident, reflected and diffracted waves. Numerical results of dynamic stress intensity factors are obtained and compared with the corresponding static values. The transient solution is shown to approach the static value after the first few waves interactive with the crack tip have passed. © ASCE. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/86374 http://ntur.lib.ntu.edu.tw/bitstream/246246/86374/1/33.pdf https://www.scopus.com/inward/record.uri?eid=2-s2.0-0028333194&doi=10.1061%2f%28ASCE%290733-9399%281994%29120%3a3%28483%29&partnerID=40&md5=242cf1274e69f43810bc64dabfa81864 |
ISSN: | 07339399 | SDG/關鍵字: | Cracks; Dynamic Analysis; Laplace Transformations; Stress Waves |
顯示於: | 機械工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。