Modeling effects of gas bubbles on the mechanical behaviors of Ag/Bi-2212 round wires using a double cantilever beam bridge model

doi:10.1016/j.cryogenics.2016.05.003

	Modeling effects of gas bubbles on the mechanical behaviors of Ag/Bi-2212 round wires using a double cantilever beam bridge model
	Lu, YR; Wang, ZT; Yong, HD; Zhou, YH; Yong, HD (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Dept Mech & Engn Sci, Lanzhou 730000, Gansu, Peoples R China.
刊名	CRYOGENICS
	2016-07
卷号	77 页码:65-73
关键词	Bi2212 wire Gas bubble Mechanical behavior
ISSN号	0011-2275
DOI	10.1016/j.cryogenics.2016.05.003
文献子类	Article
英文摘要	Due to the larger current-carrying property, Bi2Sr2CaCu2Ox, (Bi2212) superconductors have a great potential application in high field magnet. Bi2212 superconducting material can be fabricated as an isotropic round wire. However, there is 30% void space in the wire, such as gas bubbles. The void space has a larger influence on the property of the wire. In this paper, we will study the effect of gas bubble on the fracture behavior. Based on the double cantilever beam model and critical state theory, the mechanical behavior of Bi2212 wire is studied for decreasing field. Two different damage mechanisms are discussed using the strain energy release rate and strain of bridge. The results show that the large gas bubble can increase the strain of bridge. The central filaments with gas bubble are easier to be damaged than the edge filaments with gas bubble. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Thermodynamics ; Physics
出版地	OXFORD
资助项目	国家自然科学基金项目 ; 国家磁约束核聚变能发展研究专项 ; 新世纪优秀人才支持计划
项目编号	National Natural Science Foundation of China [11202087, 11472120, 11421062] ; National Key Project of Magneto-Constrained Fusion Energy Development Program [2013GB110002] ; New Century Excellent Talents in University of Ministry of Education of China [NCET-13-0266]
语种	英语
WOS记录号	WOS:000379633200011
资助机构	NSFC ; MOST ; MOE
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182545]
专题	土木工程与力学学院_期刊论文
通讯作者	Yong, HD (reprint author), Lanzhou Univ, Coll Civil Engn & Mech, Dept Mech & Engn Sci, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Lu, YR,Wang, ZT,Yong, HD,et al. Modeling effects of gas bubbles on the mechanical behaviors of Ag/Bi-2212 round wires using a double cantilever beam bridge model[J]. CRYOGENICS,2016,77:65-73.
APA	Lu, YR,Wang, ZT,Yong, HD,Zhou, YH,&Yong, HD .(2016).Modeling effects of gas bubbles on the mechanical behaviors of Ag/Bi-2212 round wires using a double cantilever beam bridge model.CRYOGENICS,77,65-73.
MLA	Lu, YR,et al."Modeling effects of gas bubbles on the mechanical behaviors of Ag/Bi-2212 round wires using a double cantilever beam bridge model".CRYOGENICS 77(2016):65-73.