Experimental investigation of fatigue behavior for adhesively-bonded GFRP/steel joints

被引：20
作者：
Jiang, Zhengwen [1 ,2 ]
Wan, Shui [3 ]
Fang, Zhi [2 ]
Song, Aiming [3 ]
机构：
[1] Hunan Univ, Coll Civil Engn, Key Lab Damage Diag Engn Struct Hunan Prov, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Coll Civil Engn, Key Lab Wind & Bridge Engn Hunan Prov, Changsha 410082, Hunan, Peoples R China
[3] Southeast Univ, Sch Transportat, Nanjing 210096, Peoples R China
来源：
ENGINEERING STRUCTURES | 2020年 / 213卷
基金：
中国国家自然科学基金;
关键词：
Adhesively bonded GFRP/steel joint; Fatigue behavior; Stiffness degradation model; Crack initiation law; Crack growth rate; AMPLITUDE FATIGUE; STEEL BRIDGES; CRACK GROWTH; REHABILITATION;
D O I：
10.1016/j.engstruct.2020.110580
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The fatigue behavior of an adhesively bonded glass fiber-reinforced polymer (GFRP)/steel double-lap joint (DLJ) under cyclic tensile loading with load ratio R = 0.1 was experimentally studied. Results in terms of failure mode, F-N curve, stiffness degradation law, crack initiation and propagation laws were obtained. Linear and nonlinear models of stiffness degradation and a mathematical model of the crack growth rate were developed for the adhesive GFRP/steel DLJ under fatigue loading. The fatigue performance of adhesive GFRP/steel DLJ was compared with that of adhesive GFRP/GFRP DLJ to identify the differences between these behaviors. The results demonstrated that the stiffness degradation law of the adhesive GFRP/steel DLJ can be objectively and accurately characterized by the nonlinear stiffness degradation model in terms of the equivalent shear stiffness. The crack initiation life and the ratio between the crack initiation life and fatigue life increased with the deceasing maximum applied load. The fatigue life of the GFRP/steel DLJ was more sensitive to the variation in the maximum applied load compared with that of the GFRP/GFRP DLJ. Moreover, the decaying rate of stiffness and the interfacial crack propagation rate for the GFRP/steel DLJ under fatigue loading were larger than those for the GFRP/GFRP DLJ.
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页数：10
相关论文
共 32 条
[1]   Bonded FRP Plates for Strengthening Rectangular Hollow Steel Section T-Joints against Web Buckling Induced by Transverse Compression [J].
Aguilera, Jose ;
Fam, Amir .
JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2013, 17 (04) :421-432
[2]   Effect of crack orientation on fatigue behavior of CFRP-strengthened steel plates [J].
Aljabar, N. J. ;
Zhao, X. L. ;
Al-Mahaidi, R. ;
Ghafoori, E. ;
Motavalli, M. ;
Powers, N. .
COMPOSITE STRUCTURES, 2016, 152 :295-305
[3]  
Cadei J M. C., 2004, CIRIA
[4]   Fatigue crack growth in adhesively bonded composite-metal double-lap joints [J].
Cheuk, PT ;
Tong, L ;
Wang, CH ;
Baker, A ;
Chalkley, P .
COMPOSITE STRUCTURES, 2002, 57 (1-4) :109-115
[5]   Fatigue crack growth in CFRP-strengthened steel plates [J].
Colombi, Pierluigi ;
Fava, Giulia ;
Sonzogni, Lisa .
COMPOSITES PART B-ENGINEERING, 2015, 72 :87-96
[6]   Fatigue behaviour of tensile steel/CFRP joints [J].
Colombi, Pierluigi ;
Fava, Giulia .
COMPOSITE STRUCTURES, 2012, 94 (08) :2407-2417
[7]   Fatigue performance of metallic beam strengthened with a bonded CFRP plate [J].
Deng, Jun ;
Lee, Marcus M. K. .
COMPOSITE STRUCTURES, 2007, 78 (02) :222-231
[8]   Experimental Study on CFRP-to-Steel Bonded Interfaces under Quasi-Static Cyclic Loading [J].
Doroudi, Y. ;
Fernando, D. ;
Nguyen, V. T. ;
Torres, J. P. .
JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2019, 23 (04)
[9]   Rehabilitation of composite steel bridges using GFRP plates [J].
EL Damatty, AA ;
Abushagur, M ;
Youssef, MA .
APPLIED COMPOSITE MATERIALS, 2005, 12 (05) :309-325
[10]   Fatigue behavior of adhesively bonded joints composed of pultruded GFRP adherends for civil infrastructure applications [J].
Keller, Thomas ;
Zhou, Aixi .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2006, 37 (08) :1119-1130
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