Flux-pinning-induced stress and magnetostriction in a superconducting strip under combination of transport current and magnetic field

doi:10.1063/1.5003245

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	Flux-pinning-induced stress and magnetostriction in a superconducting strip under combination of transport current and magnetic field
	Yang, Yumei 1,2; Wang, Xingzhe 1
刊名	JOURNAL OF APPLIED PHYSICS
	2017-09-21
卷号	122 期号:11
关键词	Critical current density (superconductivity) High temperature superconductors Magnetostriction Applied magnetic fields Bean critical state model Linear elastic theory Magnetoelastic properties Restraint conditions Structural instability Superconducting strips Trapped magnetic flux
ISSN号	0021-8979
DOI	10.1063/1.5003245
英文摘要	The magnetoelastic properties and behaviors arising from the flux-pinning effect are investigated for a long rectangular superconducting strip subject to a combination of applied transport current and magnetic field. Based on the Bean critical state model and linear elastic theory, the flux-pinning-induced stress in the superconducting strip is analytically obtained under the zero-field cooling condition. In particular, the magnetostriction performance for the strip with a one-sided restraint condition is then investigated. The results show that the trapped magnetic flux is distributed asymmetrically along the y-direction. A non-zero resultant force is consequently observed from the magnetization arising from the applied transport current and magnetic field. An obvious tension stress emerges around the constrained side of the strip along which the highest probability for cracking occurs and leads to a structural instability. The analytical results give insight into the flux-pinning-induced stress and magnetostriction response of the superconducting strip under both complex carrying-current and applied magnetic field conditions. These results may also provide helpful guidance in avoiding the breakdown of high-temperature superconductors. Published by AIP Publishing.
资助项目	Open Fund of Key Laboratory of Mechanics on Disaster and Environment in Western China[201402]
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000411459800024
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33099]
专题	理学院
通讯作者	Wang, Xingzhe
作者单位	1.Lanzhou Univ, Key Lab Mech Western Disasters & Environm, Key Lab Special Funct Mat & Struct Design, Minist Educ,Coll Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yumei,Wang, Xingzhe. Flux-pinning-induced stress and magnetostriction in a superconducting strip under combination of transport current and magnetic field[J]. JOURNAL OF APPLIED PHYSICS,2017,122(11).
APA	Yang, Yumei,&Wang, Xingzhe.(2017).Flux-pinning-induced stress and magnetostriction in a superconducting strip under combination of transport current and magnetic field.JOURNAL OF APPLIED PHYSICS,122(11).
MLA	Yang, Yumei,et al."Flux-pinning-induced stress and magnetostriction in a superconducting strip under combination of transport current and magnetic field".JOURNAL OF APPLIED PHYSICS 122.11(2017).