Far-Field Solution of Circular Lining and Linear Crack by SH-wave
Circular lining is used widely in structure design. In this paper, the method of Green’s function is used to investigate the problem of far field solution of circular lining and linear crack impacted by incident SH-wave. Firstly, a Green’s function is constructed, which is a fundamental solution of displacement field for an elastic space possessing a circular lining while bearing out-ofplane harmonic line source force at any point; Secondly, in terms of the solution of SH-wave’s scattering by an elastic space with circular lining, 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; Finally, the expressions of displacement and stress are given when the circular lining and linear crack exist at the same time. Then, the far field of scattered wave is studied. The results can be applied in the study of fracture, and undamaged frame crack detection.
circular lining Green’s Function SH-wave scattering crack far-field solution
HongLiang Li Rui Zhang
Department of Engineering Mechanics, College of Aerospace Engineering and Civil Engineering, Harbin Engineering University, Harbin, 150001, China
国际会议
青岛
英文
1447-1450
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）