Experimental study and finite element analysis on impact resistance of large-rupture-strain FRP reinforced civil air defense wall

Shi, Chenglong; Zhang, Jigang; Zhang, Junbo; Zhang, Menglin; Yan, Qingfeng; Zhao, Yang; Yang, Yingchun; Shao, Feng

doi:10.1016/j.istruc.2022.05.027

Cited by 6 publications

(4 citation statements)

References 26 publications

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“…36,37 The large fracture strain material can restrain the concrete fragment from peeling. 38,39 At present, the fracture strain of FRP is 1.5%-3.0%, which is much lower than that of PET (14.7%). The large fracture strain of PET makes up for the small tensile fracture strain of FRP.…”

Section: Introductionmentioning

confidence: 80%

“…Polyethylene terephthalate (PET) is a new type of FRP composite material, which has the characteristics of high performance, high toughness, high tensile fracture load, low elongation, low creep, no rust, and safety in use 36,37 . The large fracture strain material can restrain the concrete fragment from peeling 38,39 . At present, the fracture strain of FRP is 1.5%–3.0%, which is much lower than that of PET (14.7%).…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on flexural performance of reinforced concrete beams strengthened by PET

Liu

et al. 2023

Structural Concrete

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Polyethylene terephthalate (PET) is a new type of fiber‐reinforced polymer (FRP) composite material, which has the characteristics of high performance, high toughness, high tensile fracture load, low elongation, low creep, no rust, and safety in use. The good performance of PET can significantly improve the mechanical properties of its components. A total of six reinforced concrete (RC) beams were produced in the test, one of which was a comparison beam, and the other five were reinforced with PET. In the test, the PET reinforcement spacing, number of reinforcement layers, and laying method were used as control variables, and an experimental study on the normal section bending performance of the specimen was performed. The test analyses the failure characteristics, crack width, bearing capacity, and deflection of the specimens under different reinforcement conditions. The test results showed that PET reinforcement can effectively inhibit the occurrence and development of cracks in RC beams and improve the ultimate bearing capacity and ductility of the components. The smaller the PET reinforcement spacing, the higher the ultimate bearing capacity; the greater the number of PET layers, the better the ductility of the specimen. Additionally, the economy, environmental protection, and portability of PET are of great significance for its application in practical engineering reinforcement.

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Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Experimental study on flexural performance of reinforced concrete beams strengthened by PET

Liu

et al. 2023

Structural Concrete

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“…Generally, they are composed of polyethylene naphthalene or polyethylene terephthalate (PET). LRS FRPs enhance the ductility, impact resistance duration, and damage degree of concrete specimens [ 43 , 44 ]. Shi et al [ 44 ] experimented with a shear wall under the pendulum impact test.…”

Section: Research Progressmentioning

confidence: 99%

“…LRS FRPs enhance the ductility, impact resistance duration, and damage degree of concrete specimens [ 43 , 44 ]. Shi et al [ 44 ] experimented with a shear wall under the pendulum impact test. The results indicated that LFRP can significantly improve the impact-bearing capacity, deformation capacity, ductility, and energy dissipation [ 43 ].…”

Section: Research Progressmentioning

confidence: 99%

Experimental Studies and Application of Fiber-Reinforced Polymers (FRPs) in Civil Infrastructure Systems: A State-of-the-Art Review

Albuja-Sánchez,

Damián-Chalán,

Escobar

2024

Polymers

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The application of FRPs in civil infrastructure has increased, particularly in the last 20 years. FRPs have gained importance because of their resistance to harsh environments, high strength-to-weight ratio, and good corrosion resistance, and they are faster and easier to apply than other traditional methods. The rehabilitation of structures is the main area in which FRPs have been developed, because they have allowed for compliance with architectural restraints in historic structures. This review is a compilation of the research conducted on the laboratory and field applications of FRPs, highlighting the different applied methods, installation difficulties, and failure modes of FRPs. Moreover, this review compares studies on the types of fibers such as CFRPs, GFRPs, and AFRPs, and their effects would affect the mechanical properties of civil infrastructure and the durability characteristics of civil infrastructure in challenging environmental conditions. In addition, this review focuses on the modification of the mechanical properties of structural elements using different methods of installing FRPs, including externally bonded reinforcement (EBR), and their main problem: debonding failure before the ultimate load.

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Experimental and numerical study on impact resistance of offshore wind turbine CFDST jacket

Shi,

Zhang,

Liu

et al. 2023

Engineering Structures

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Experimental study and finite element analysis on impact resistance of large-rupture-strain FRP reinforced civil air defense wall

Cited by 6 publications

References 26 publications

Experimental study on flexural performance of reinforced concrete beams strengthened by PET

Experimental study on flexural performance of reinforced concrete beams strengthened by PET

Experimental Studies and Application of Fiber-Reinforced Polymers (FRPs) in Civil Infrastructure Systems: A State-of-the-Art Review

Experimental and numerical study on impact resistance of offshore wind turbine CFDST jacket

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