英文论文
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文献类型
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Journal article (JA)
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题名
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Experimental Study of Fatigue and Fracture Behavior of Carbon Fiber-Reinforced Polymer (CFRP) Straps
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作者
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Gao, Jing; Xu, Penghai; Fan, Lingyun; Li, Jinfeng; Terrasi, Giovanni Pietro; Meier, Urs
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作者单位
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[Gao, Jing; Xu, Penghai; Fan, Lingyun; Li, Jinfeng] Xiamen Univ, Dept Civil Engn, Daxue Rd 182, Xiamen 361005, Fujian, Peoples R China. [Terrasi, Giovanni Pietro; Meier, Urs] Empa, Swiss Fed Labs Mat Sci & Technol, Mech Syst Engn Lab, Ueberlandstr 129, CH-8600 Dubendorf, Switzerland.
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通讯作者地址
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Xiamen Univ, Dept Civil Engn, Daxue Rd 182, Xiamen 361005, Fujian, Peoples R China.
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Email
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gaojing@xmu.edu.cn; 25320211152338@stu.xmu.edu.cn; fly950920@163.com; l347218244@163.com; giovanni.terrasi@empa.ch; urs.meier@empa.ch
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ResearchID
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ORCID
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期刊名称
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Polymers
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出版社
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MDPI
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ISSN
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出版信息
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2022-05-02 , 14 (10)
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JCR
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3
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影响因子
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ISBN
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基金
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Natural Science Foundation of China [U2005216]; Science and Technology Research and Development Plan of China Railway Group Limited [2020-Key-11]; Natural Science Foundation of Fujian [2020J01010]
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会议名称
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会议地点
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会议开始日期
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会议结束日期
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关键词
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Arch bridges; Carbon fiber reinforced plastics; Corrosion resistance; Fatigue of materials; Fatigue testing; Fracture; Friction; Reinforcement; Scanning electron microscopy; Steel corrosion; Tensile testing; Titanium alloys
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摘要
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The hanger is one of the important components for through and half-through arch bridges. Conventional steel hangers are vulnerable to corrosion due to corrosive environments. Therefore, a new type of bridge hangers consisting of Carbon Fiber-Reinforced Polymer (CFRP) straps was developed recently. The CFRP straps are self-anchored, which is formed by layers-winding, and they have great advantages in corrosive environments such as high resistance to corrosion. In this study, the fatigue and fracture behavior of CFRP straps has been experimentally investigated. Firstly, the tensile testing of four CFRP strap specimens was conducted to investigate the static fracture behavior of CFRP straps, and three stages were observed, including delamination, cracking, and brittle rupture. Then, a fatigue test of thirty-nine specimens (four groups) was carried out to study the fatigue behavior of CFRP straps, where two types of pins, titanium alloy pin and CFRP pin, and two loading frequencies, 10 Hz and 15 Hz, were used. The number of cycles to failure, displacement, fatigue failure strain, outside surface temperature at the vertex of specimen, and scanning electron microscope (SEM) photographs were recorded and analyzed to investigate the fatigue behavior of CFRP straps. The experiment results show that the temperature development at the vertex of the CFRP strap varies obviously if different pins are used due to the different friction coefficients. In addition, the fatigue life of CFRP straps decreases significantly with the increase in loading rate for the titanium pin, while it only reduces slightly with the increase in loading rate for the CFRP pin.
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一级学科
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Polymer Science
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WOS入藏号
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WOS:000802395100001
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EI收录号
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20222112158471
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DOI
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10.3390/polym14102129
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ESI
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收录于
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SCIE, EI
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