Combined Effect of Pressure and Shear Stress on Penny-Shaped Fluid-Driven Cracks

doi:10.1115/1.4038719

IMECH-IR > 非线性力学国家重点实验室

	Combined Effect of Pressure and Shear Stress on Penny-Shaped Fluid-Driven Cracks
	Shen WH(沈文豪); Zhao YP(赵亚溥)
发表期刊	JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
	2018-03-01
卷号	85 期号:3 页码:31003
ISSN	0021-8936
摘要	Penny-shaped fluid-driven cracks are often detected in many fluid-solid interaction problems. We study the combined effect of pressure and shear stress on the crack propagation in an impermeable elastic full space. Boundary integral equations are presented, by using the integral transform method, for a penny-shaped crack under normal and shear stresses. The crack propagation criterion of stress intensity factor is examined with the strain energy release rate. Dominant regimes are obtained by using a scaling analysis. Asymptotic solution of the toughness-dominant regime is derived to show the effect of shear stress on the crack opening, crack length, and pressure distribution. The results indicate that a singular shear stress can dominate the asymptotic property of the stress field near the crack tip, and the stress intensity factor cannot be calculated even though the energy release rate is finite. Shear stress leads to a smaller crack opening, a longer crack, and a slightly larger wellbore pressure. A novel dominant-regime transition between shear stress and pressure is found. Unstable crack propagation occurs in the shear stress-dominant regime. This study may help in understanding crack problems under symmetrical loads and modeling fluid-solid interactions at the crack surfaces.
关键词	penny-shaped cracks shear stress crack propagation criterion fluid-driven cracks
DOI	10.1115/1.4038719
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000423854400003
关键词[WOS]	HYDRAULIC FRACTURE ; TIP ASYMPTOTICS ; PROPAGATION
WOS研究方向	Mechanics
WOS类目	Mechanics
项目资助者	National Natural Science Foundation of China [11372313, 11611130019, U1562105] ; Chinese Academy of Sciences (CAS) through CAS Interdisciplinary Innovation Team Project, the CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-449JSC019] ; CAS Strategic Priority Research Program [XDB22040401]
论文分区	一类/力学重要期刊
力学所作者排名	1
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77910
专题	非线性力学国家重点实验室
作者单位	1.[Shen, Wenhao 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China 3.[Shen, Wenhao 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Shen WH,Zhao YP. Combined Effect of Pressure and Shear Stress on Penny-Shaped Fluid-Driven Cracks[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2018,85,3,:31003.
APA	沈文豪,&赵亚溥.(2018).Combined Effect of Pressure and Shear Stress on Penny-Shaped Fluid-Driven Cracks.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,85(3),31003.
MLA	沈文豪,et al."Combined Effect of Pressure and Shear Stress on Penny-Shaped Fluid-Driven Cracks".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 85.3(2018):31003.

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