Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands
Extensive research has been performed on the tensile properties of carbon fibre-reinforced polymer (CFRP) material used in both standalone and rehabilitation applications. Limited knowledge and design guidelines exist on the flexural behaviour of CFRP cable strands (herein strand) and reinforcing ba...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941824003635 |
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| author | Fuli Ban Thierno Aliou Ka Yanze Peng Shuai Guan Jiahui Sun Yue Liu Kaiqiang Qin Baiyong Fu Sarkar Noor-E-Khuda T. Tafsirojjaman |
| author_facet | Fuli Ban Thierno Aliou Ka Yanze Peng Shuai Guan Jiahui Sun Yue Liu Kaiqiang Qin Baiyong Fu Sarkar Noor-E-Khuda T. Tafsirojjaman |
| author_sort | Fuli Ban |
| collection | DOAJ |
| description | Extensive research has been performed on the tensile properties of carbon fibre-reinforced polymer (CFRP) material used in both standalone and rehabilitation applications. Limited knowledge and design guidelines exist on the flexural behaviour of CFRP cable strands (herein strand) and reinforcing bars. This knowledge gap hinders the widespread use of strands and CFRP bars in prestressed structures and restricts their market share compared to reinforcing steel members. To address this gap, this study investigates the flexural behaviour of CFRP strands and reinforcing bars using a combination of experimental and numerical methods. A standard three-point bending test is employed to measure the flexural strength and ultimate curvature radius of strands and bars. The experimental study included strands of diameters 10.2 mm and 15.2 mm, and CFRP bars of diameters 9 mm, 12 mm, and 14 mm. Finite element analysis has been conducted to further investigate the flexural performance and failure mechanisms of the specimens. The test results indicate that the ultimate bending radius of the strands is approximately one-half of that of the bar, while their ultimate bending strength surpasses the bars by at least 10 %. Optimal lay lengths for the 10.2 mm and 15.2 mm cable strands are proposed based on the simulation results. |
| format | Article |
| id | doaj-art-d35976ae39b24c70b295c44a8533ed86 |
| institution | Kabale University |
| issn | 1873-2348 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj-art-d35976ae39b24c70b295c44a8533ed862025-01-12T05:24:09ZengElsevierPolymer Testing1873-23482025-01-01142108686Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strandsFuli Ban0Thierno Aliou Ka1Yanze Peng2Shuai Guan3Jiahui Sun4Yue Liu5Kaiqiang Qin6Baiyong Fu7Sarkar Noor-E-Khuda8T. Tafsirojjaman9Guangxi Xingang Transportation Investment Co., Ltd, No. 555 Nanzhu East Street, Shabu Town, Qinnan District, Qinzhou City, Guangxi Zhuang Autonomous Region, ChinaResearch Institute of Urbanization and Urban Safety, School of Civil and Resource Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing, 100083, ChinaGuangxi Xingang Transportation Investment Co., Ltd, No. 555 Nanzhu East Street, Shabu Town, Qinnan District, Qinzhou City, Guangxi Zhuang Autonomous Region, ChinaThe Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Pingleyuan Road 100, Beijing, 100124, ChinaThe Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Pingleyuan Road 100, Beijing, 100124, ChinaResearch Institute of Urbanization and Urban Safety, School of Civil and Resource Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing, 100083, ChinaCCCC Highway Bridges National Engineering Research Center Co., Ltd., 85 Deshengmenwai Street, Beijing, 100088, ChinaCCCC Highway Bridges National Engineering Research Center Co., Ltd., 85 Deshengmenwai Street, Beijing, 100088, ChinaSchool of Engineering and Technology, Central Queensland University, Melbourne, VIC, 3000, AustraliaSchool of Architecture and Civil Engineering, The University of Adelaide, Adelaide, South Australia, 5005, Australia; Corresponding author.Extensive research has been performed on the tensile properties of carbon fibre-reinforced polymer (CFRP) material used in both standalone and rehabilitation applications. Limited knowledge and design guidelines exist on the flexural behaviour of CFRP cable strands (herein strand) and reinforcing bars. This knowledge gap hinders the widespread use of strands and CFRP bars in prestressed structures and restricts their market share compared to reinforcing steel members. To address this gap, this study investigates the flexural behaviour of CFRP strands and reinforcing bars using a combination of experimental and numerical methods. A standard three-point bending test is employed to measure the flexural strength and ultimate curvature radius of strands and bars. The experimental study included strands of diameters 10.2 mm and 15.2 mm, and CFRP bars of diameters 9 mm, 12 mm, and 14 mm. Finite element analysis has been conducted to further investigate the flexural performance and failure mechanisms of the specimens. The test results indicate that the ultimate bending radius of the strands is approximately one-half of that of the bar, while their ultimate bending strength surpasses the bars by at least 10 %. Optimal lay lengths for the 10.2 mm and 15.2 mm cable strands are proposed based on the simulation results.http://www.sciencedirect.com/science/article/pii/S0142941824003635CFRP strandCFRP barThree-point bending testFinite element analysisFlexural properties |
| spellingShingle | Fuli Ban Thierno Aliou Ka Yanze Peng Shuai Guan Jiahui Sun Yue Liu Kaiqiang Qin Baiyong Fu Sarkar Noor-E-Khuda T. Tafsirojjaman Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands Polymer Testing CFRP strand CFRP bar Three-point bending test Finite element analysis Flexural properties |
| title | Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands |
| title_full | Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands |
| title_fullStr | Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands |
| title_full_unstemmed | Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands |
| title_short | Comparative study of flexural behaviour of carbon fiber reinforced polymer (CFRP) bars and strands |
| title_sort | comparative study of flexural behaviour of carbon fiber reinforced polymer cfrp bars and strands |
| topic | CFRP strand CFRP bar Three-point bending test Finite element analysis Flexural properties |
| url | http://www.sciencedirect.com/science/article/pii/S0142941824003635 |
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