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Experimental Investigation and Finite Element Analysis on Fatigue Behavior of Aluminum Alloy 7050 Single-Lap Joints
Zhou, B; Cui, H; Liu, HB; Li, Y; Liu, GF; Li, SJ; Zhang, SZ; Zhang, SZ (reprint author), Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China.
2018-03-01
Source PublicationJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN1059-9495
Volume27Issue:3Pages:915-923
AbstractThe fatigue behavior of single-lap four-riveted aluminum alloy 7050 joints was investigated by using high-frequency fatigue test and scanning electron microscope (SEM). Stress distributions obtained by finite element (FE) analysis help explain the fatigue performance. The fatigue test results showed that the fatigue lives of the joints depend on cold expansion and applied cyclic loads. FE analysis and fractography indicated that the improved fatigue lives can be attributed to the reduction in maximum stress and evolution of fatigue damage at the critical location. The beneficial effects of strengthening techniques result in tearing ridges or lamellar structure on fracture surface, decrease in fatigue striations spacing, delay of fatigue crack initiation, crack deflection in fatigue crack propagation and plasticity-induced crack closure.; The fatigue behavior of single-lap four-riveted aluminum alloy 7050 joints was investigated by using high-frequency fatigue test and scanning electron microscope (SEM). Stress distributions obtained by finite element (FE) analysis help explain the fatigue performance. The fatigue test results showed that the fatigue lives of the joints depend on cold expansion and applied cyclic loads. FE analysis and fractography indicated that the improved fatigue lives can be attributed to the reduction in maximum stress and evolution of fatigue damage at the critical location. The beneficial effects of strengthening techniques result in tearing ridges or lamellar structure on fracture surface, decrease in fatigue striations spacing, delay of fatigue crack initiation, crack deflection in fatigue crack propagation and plasticity-induced crack closure.
description.department[zhou, bing] yantai univ, sch mech & automobile engn, yantai 264005, peoples r china ; [cui, hao ; liu, haibo ; li, yang ; zhang, shangzhou] yantai univ, sch environm & mat engn, yantai 264005, peoples r china ; [liu, gaofeng] oriental bluesky titanium technol co ltd, yantai 264005, peoples r china ; [li, shujun] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
KeywordInterference-fit Cold Expansion Al 2024-t3 Residual-stress Fastener Hole Crack-growth Shear Performance Prediction Life
Subject AreaMaterials Science, Multidisciplinary
Funding OrganizationShandong Provincial Key Research and Development Program, China [2017GGX20140]; Shandong Provincial Natural Science Foundation, China [ZR2014JL031]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79460
Collection中国科学院金属研究所
Corresponding AuthorZhang, SZ (reprint author), Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China.
Recommended Citation
GB/T 7714
Zhou, B,Cui, H,Liu, HB,et al. Experimental Investigation and Finite Element Analysis on Fatigue Behavior of Aluminum Alloy 7050 Single-Lap Joints[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2018,27(3):915-923.
APA Zhou, B.,Cui, H.,Liu, HB.,Li, Y.,Liu, GF.,...&Zhang, SZ .(2018).Experimental Investigation and Finite Element Analysis on Fatigue Behavior of Aluminum Alloy 7050 Single-Lap Joints.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,27(3),915-923.
MLA Zhou, B,et al."Experimental Investigation and Finite Element Analysis on Fatigue Behavior of Aluminum Alloy 7050 Single-Lap Joints".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 27.3(2018):915-923.
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