Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer
In this paper, an experimental and theoretical study on the uniaxial tensile behavior of a fiber-reinforced polymer (FRP) grid-engineered cementitious composite (ECC) composite layer is described. Based on the test parameters, including the ECC material properties, the ECC cross-sectional area and t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509524000603 |
| _version_ | 1797342189842333696 |
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| author | Yu Ren Maoyao Xia Yi Pan Shuaifei Guo Rui Guo |
| author_facet | Yu Ren Maoyao Xia Yi Pan Shuaifei Guo Rui Guo |
| author_sort | Yu Ren |
| collection | DOAJ |
| description | In this paper, an experimental and theoretical study on the uniaxial tensile behavior of a fiber-reinforced polymer (FRP) grid-engineered cementitious composite (ECC) composite layer is described. Based on the test parameters, including the ECC material properties, the ECC cross-sectional area and the FRP grid cross-sectional area, three groups of ECC specimens and six groups of composite layer specimens were tested to reveal their joint action mechanism and tensile behavior. The experimental results showed two failure modes: fibers were pulled off or pulled out in the ECC specimens, and in the composite layer specimens, part of the fiber bars in the FRP grid was pulled off. The stress–strain curves show three stages: the elastic stage, softening stage and hardening stage. Due to the reinforcement of the FRP grid, the ultimate stress of the composite layer increased significantly compared with that of the ECC specimens. The composite layer softening strain was primarily related to the ECC softening strain, and the ultimate strain was primarily related to the FRP grid fracture strain. Moreover, a three-stage model was proposed to predict the stressstrain relationship, exhibiting a higher prediction accuracy and smaller dispersion compared with the three existing models. |
| first_indexed | 2024-03-08T10:29:41Z |
| format | Article |
| id | doaj.art-9f4431da620c4a0792ee9f31e406e354 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-08T10:29:41Z |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-9f4431da620c4a0792ee9f31e406e3542024-01-27T06:54:52ZengElsevierCase Studies in Construction Materials2214-50952024-07-0120e02909Study on the uniaxial tensile behavior of an FRP grid-ECC composite layerYu Ren0Maoyao Xia1Yi Pan2Shuaifei Guo3Rui Guo4Department of Building Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Building Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Building Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaChina Construction First Group Corporation Limited, 52, West 4th Ring South Road, Fengtai, Beijing 100073, ChinaDepartment of Building Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; Corresponding author.In this paper, an experimental and theoretical study on the uniaxial tensile behavior of a fiber-reinforced polymer (FRP) grid-engineered cementitious composite (ECC) composite layer is described. Based on the test parameters, including the ECC material properties, the ECC cross-sectional area and the FRP grid cross-sectional area, three groups of ECC specimens and six groups of composite layer specimens were tested to reveal their joint action mechanism and tensile behavior. The experimental results showed two failure modes: fibers were pulled off or pulled out in the ECC specimens, and in the composite layer specimens, part of the fiber bars in the FRP grid was pulled off. The stress–strain curves show three stages: the elastic stage, softening stage and hardening stage. Due to the reinforcement of the FRP grid, the ultimate stress of the composite layer increased significantly compared with that of the ECC specimens. The composite layer softening strain was primarily related to the ECC softening strain, and the ultimate strain was primarily related to the FRP grid fracture strain. Moreover, a three-stage model was proposed to predict the stressstrain relationship, exhibiting a higher prediction accuracy and smaller dispersion compared with the three existing models.http://www.sciencedirect.com/science/article/pii/S2214509524000603Fiber reinforced polymer (FRP) gridEngineered cementitious composite (ECC)Composite layerUniaxial tensile testStress–strain model |
| spellingShingle | Yu Ren Maoyao Xia Yi Pan Shuaifei Guo Rui Guo Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer Case Studies in Construction Materials Fiber reinforced polymer (FRP) grid Engineered cementitious composite (ECC) Composite layer Uniaxial tensile test Stress–strain model |
| title | Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer |
| title_full | Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer |
| title_fullStr | Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer |
| title_full_unstemmed | Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer |
| title_short | Study on the uniaxial tensile behavior of an FRP grid-ECC composite layer |
| title_sort | study on the uniaxial tensile behavior of an frp grid ecc composite layer |
| topic | Fiber reinforced polymer (FRP) grid Engineered cementitious composite (ECC) Composite layer Uniaxial tensile test Stress–strain model |
| url | http://www.sciencedirect.com/science/article/pii/S2214509524000603 |
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