FAR FIELD SOLUTION OF SH-WAVE BY CIRCULAR INCLUSION AND LINEAR CRACK
Circular inclusion is used widely in structure engineering. In this paper, the method of Green?ˉs function is used to investigate the problem of far field solution of circular inclusion and linear crack impacted by incident displacement field for an elastic space possessing a circular inclusion while bearing out-of-plane harmonic line circular inclusion, anti-plane stresses which are the same in quantity but opposite in direction to those mentioned before, are loaded at the region where the linear crack is in existent actually, we called this process crack-division; Finally, the expressions of the displacement and stresses are given when the circular and close field solution has been illustrated, the far field of scattered wave is studied. The displacement mode of scattered wave at far field and scattering cross-section are given. Numerical results are illustrated and the influence of wave number, incident angles of SH-wave, and the combination of different media parameters are discussed. The results can be applied in the study of fracture, and undamaged frame crack detection.
crack circular inclusion Green?ˉs Function SH-wave scattering displacement mode of scattered wave at far field scattered cross-section
HongLiang Li GuoHui Wu
Department of Engineering Mechanics, Harbin Engineering University, Harbin. China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）