Mechanistic understanding of compression-compression fatigue behavior of functionally graded Ti-6Al-4V mesh structure fabricated by electron beam melting

doi:10.1016/j.jmbbm.2019.103590

IMR OpenIR

	Mechanistic understanding of compression-compression fatigue behavior of functionally graded Ti-6Al-4V mesh structure fabricated by electron beam melting
	Wang, Q. S.1,2; Li, S. J.1; Hou, W. T.1; Wang, S. G.1; Hao, Y. L.1; Yang, R.1; Misra, R. D. K.3
通讯作者	Li, S. J.(shjli@imr.ac.cn)
	2020-03-01
发表期刊	JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
ISSN	1751-6161
卷号	103 页码:8
摘要	In recent years, mesh structures have attracted significant interest for structural and functional applications. However, the mechanical strength and energy absorption ability of uniform mesh structured materials degrade with density. To address this challenge, we propose the concept of functionally graded mesh structures. The objective of the proposed research is to fundamentally understand the compressive behavior of graded mesh structures. The compression-compression fatigue behavior of functionally graded Ti-6Al-4V mesh structure under identical bulk stress condition is studied here. During cyclic deformation, it was observed that the local stress distribution in the struts was not uniform because of inhomogeneous mechanical properties of the constituents. Fatigue cracks first initiated in the lowest strength constituent, and then propagated until structural failure occurred. However, no obvious damage was observed in other constituents during the entire process. In contrast with iso-strain state, the fatigue life of graded structure is mainly determined by the constituent with the lowest strength.
关键词	Graded meshes Compression-compression fatigue Identical bulk stress condition Electron beam melting
资助者	Chineses MoST ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China
DOI	10.1016/j.jmbbm.2019.103590
收录类别	SCI
语种	英语
资助项目	Chineses MoST[2017YFC1104903] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-JSC031-02] ; National Natural Science Foundation of China[51871220]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Biomedical ; Materials Science, Biomaterials
WOS记录号	WOS:000517856400057
出版者	ELSEVIER
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/137671
专题	中国科学院金属研究所
通讯作者	Li, S. J.
作者单位	1.Chinese Acad Sci, Inst Met Res, Titanium Alloy Lab, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Univ Texas El Paso, Dept Met Mat & Biomed Engn, 500 W Univ Ave, El Paso, TX 79968 USA
推荐引用方式 GB/T 7714	Wang, Q. S.,Li, S. J.,Hou, W. T.,et al. Mechanistic understanding of compression-compression fatigue behavior of functionally graded Ti-6Al-4V mesh structure fabricated by electron beam melting[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2020,103:8.
APA	Wang, Q. S..,Li, S. J..,Hou, W. T..,Wang, S. G..,Hao, Y. L..,...&Misra, R. D. K..(2020).Mechanistic understanding of compression-compression fatigue behavior of functionally graded Ti-6Al-4V mesh structure fabricated by electron beam melting.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,103,8.
MLA	Wang, Q. S.,et al."Mechanistic understanding of compression-compression fatigue behavior of functionally graded Ti-6Al-4V mesh structure fabricated by electron beam melting".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 103(2020):8.