含有直线裂纹的直角域中椭圆形孔洞对SH波的散射

doi:10.13722/j.cnki.jrme.2015.0915

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Abstract The scattering problem of SH-wave by a shallowly buried ellipse cavity in right-angle space with a beeline crack was analyzed by using Greens function and complex function method with conformal mapping method. The conformal mapping method and image method were employed here to construct the scattering wave field function，which satisfies the condition of stress free on the straight boundaries. An essential solution to displacement field of an elastic right-angle plane containing an ellipse cavity that any point bore an anti-plane harmonic line source load was taken as Greens function. Beeline crack was constructed with crack-division technique，and expression of displacement and stress field were given while both crack and ellipse cavity exist. The dynamic stress concentration factor(DSCF) on the edge of ellipse cavity was given as an example and the results are analyzed and discussed. Results show that the crack length，angle，distance between the ellipse cavity and beeline crack have an effect on the distribution of DSCF of the ellipse cavity.

Key words： rock mechanics right-angle plane ellipse cavity conformal mapping beeline crack dynamic stress concentration factor(DSCF)

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	DING Xiaohao
	QI Hui
	ZHAO Yuanbo

Cite this article:

DING Xiaohao,QI Hui,ZHAO Yuanbo. Scattering of SH-wave by an ellipse cavity in right-angle plane with beeline crack[J]. , 2016, 35(S2): 3829-3836.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0915 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS2/3829

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