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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
Corresponding AuthorLi, S. J.(shjli@imr.ac.cn)
2020-03-01
Source PublicationJOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
ISSN1751-6161
Volume103Pages:8
AbstractIn 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.
KeywordGraded meshes Compression-compression fatigue Identical bulk stress condition Electron beam melting
Funding OrganizationChineses MoST ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China
DOI10.1016/j.jmbbm.2019.103590
Indexed BySCI
Language英语
Funding ProjectChineses MoST[2017YFC1104903] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-JSC031-02] ; National Natural Science Foundation of China[51871220]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Biomedical ; Materials Science, Biomaterials
WOS IDWOS:000517856400057
PublisherELSEVIER
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137673
Collection中国科学院金属研究所
Corresponding AuthorLi, S. J.
Affiliation1.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
Recommended Citation
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.
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