Crack problem in a long cylindrical superconductor under viscous flux flow

doi:10.1016/j.physc.2018.11.001

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	Crack problem in a long cylindrical superconductor under viscous flux flow
	Zhao Yufeng 1,2; Liu Zhiguo 2; Xiong Kun 2
刊名	PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
	2019-01-15
卷号	556 页码:1-6
关键词	Crack problem Viscous flux flow Stress intensity factor Magnetization process
ISSN号	0921-4534
DOI	10.1016/j.physc.2018.11.001
英文摘要	In this paper, an attempt was made to study how viscous flux flow affects crack propagation in a long cylindrical superconductor by determining the stress intensity factor during the decreasing field stage after a zero-field cooling process. Under the assumption that the crack forms a perfect barrier to the flow of the shielding current, the effect of viscous flux flow on the flux profiles within the superconductor was investigated by solving the Bean model and viscous flux flow equation simultaneously. Based on the plane strain approach and J-integral theory, the variation in the normalized stress intensity factor considering viscous flux flow was obtained for different viscous flux flow velocities and crack lengths. The results indicate that when with the crack lengths are compared, the effect of viscous flux flow on crack propagation is more significant.
资助项目	Natural Science Foundation of China[11662009][11862013] ; Natural Science Foundation of Gansu Province[17JR5RA129]
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000463491500001
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32163]
专题	理学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Zhao Yufeng
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao Yufeng,Liu Zhiguo,Xiong Kun. Crack problem in a long cylindrical superconductor under viscous flux flow[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2019,556:1-6.
APA	Zhao Yufeng,Liu Zhiguo,&Xiong Kun.(2019).Crack problem in a long cylindrical superconductor under viscous flux flow.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,556,1-6.
MLA	Zhao Yufeng,et al."Crack problem in a long cylindrical superconductor under viscous flux flow".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 556(2019):1-6.