The Use of CFRP for Structural Reinforcement—Literature Review

Pawlak, A.; Górny, Tomasz; Dopierala, Lukasz; Paczos, Piotr

doi:10.3390/met12091470

Cited by 35 publications

(16 citation statements)

References 138 publications

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“…It is worth noting that, compared with the short beam method, the double beam method has a pure shear stress point, which alleviates the influence of bending stress on the shear strength between layers to a certain extent [71,72]. At the same time, considering the application of double-beam shear method to resin-based composites, it has some specificity compared with the traditional interlayer shear performance test, and is gradually widely used in the shear performance test of FMLs [73][74][75].…”

Section: Layer Plate Shear Failure and Index Evaluationmentioning

confidence: 99%

A review of FMLs performance test methods and index evaluation

et al. 2023

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With its excellent fatigue performance and high damage tolerance and other irreplaceable advantages, FMLs have gradually increased the demand in aerospace, rail transit, ship and other fields, and have put forward higher requirements for the speed and accuracy of its performance test and index evaluation. In this paper, the methods of performance test, analysis and index evaluation of FMLs are introduced from three aspects with carbon fiber and composite materials, mechanical properties and numerical simulation technology, details the common test methods, the latest technology and progress, and analyzes their advantages and disadvantages, so as to provide direction and reference for the performance test method and index evaluation of FMLs. Finally, the main development directions of the current performance testing methods and index evaluation of FMLs are briefly discussed.

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Section: Layer Plate Shear Failure and Index Evaluationmentioning

confidence: 99%

A review of FMLs performance test methods and index evaluation

et al. 2023

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“…To use CFRP as a reinforcement material, it is necessary to be mindful of certain weaknesses. The primary weaknesses of CFRP include degradation at elevated temperatures, high cost, low ductility, and low shear strength [21]. The degradation of CFRP due to the low thermal decomposition temperature (approximately 250-350 o C) of the polymer matrix at elevated temperatures has drawn significant attention [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Behavior and Microstructure Properties of Carbon Fiber Reinforced Polymer at Elevated Temperatures

Park,

Han,

Park

et al. 2024

Korean J. Met. Mater.

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Carbon fiber reinforced polymer (CFRP) has been extensively used in civil engineering for applications such as reinforcing and retrofitting various architectural materials. Therefore, understanding the degradation of CFRP under high temperatures is important. This study aims to investigate the thermomechanical and microstructural properties of CFRP plates at elevated temperatures up to 350 oC. The platetype CFRP composites were subjected to temperatures of 50, 100, 150, 200, 250, 300, and 350 oC, and then compared with pristine CFRP samples. X-ray diffraction analysis was conducted to examine the crystal structures of the carbon fibers and epoxy resin matrices in the CFRP. At temperatures higher than 150 oC, the FWHM increased due to the degradation and softening of the resin matrix. Delamination and debonding between the matrix and fibers were observed in samples exposed to temperatures above 200 oC. The maximum tensile strength of the CFRP plates exposed at 350 oC significantly decreased to 0.605 GPa, a reduction of approximately 40% compared to the pristine sample. On the other hand, Young's modulus remained relatively unchanged across the different temperatures. This suggests that the polymer matrix degradation plays a crucial role in the mechanical properties of CFRP, as the matrix layers contribute significantly to the distribution of forces.

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“…The literature review shows that similar review papers published, with a similar topic, usually focus on one of the following research areas: manufacturing properties and applications of the carbon fibres and their composites [ 31 , 32 , 33 , 34 ]; properties and applications of aramid fibres and their composites including Kevlar fibres [ 12 , 35 ]; mechanical properties of hybrid composites [ 36 ]; strengthening of timber structural members with carbon- or glass-reinforced polymers [ 37 , 38 ]; strengthening of concrete structures with fibre-reinforced polymer composites [ 39 , 40 , 41 ]. Considering the papers published in the literature in recent years, addressing the applications of composite materials for the strengthening of different structural elements in building engineering (concrete and wooden beams, ballistic protection panels), it can be observed that most of the research which has focused on such applications use carbon fibres or Kevlar fibres or Kevlar–carbon hybrid fabrics.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Carbon and Kevlar Fibres, Their Composites and Structural Applications in Civil Engineering—A Review

Ursache,

Cerbu,

Hadăr

2023

Polymers

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Kevlar and carbon fibres and fabrics have won a leading place in the structure market, although such materials are not cheap, and are increasingly used for reinforcing and strengthening structural elements in the civil engineering, automotive, aerospace and military industries, due to their superior mechanical properties, especially in terms of strength. The mechanical characteristics of such composite materials must be known in order to numerically simulate the mechanical behaviour of such structures in terms of the distribution of stresses and strains. It has also become a necessity to understand the effects of reinforcement with both types of fibres (carbon fibres and Kevlar fibres) on the mechanical properties, especially on the impact properties of such composites. This review aims to expose the main advantages and disadvantages of the hybridization of carbon and Kevlar fibres. For this reason, an overview is presented concerning the main characteristics (tensile strength, flexural strength, impact strength, coefficient of thermal expansion and so on) for carbon and Kevlar fibres and also for hybrid Kevlar–carbon composite materials to aid in the design of such hybrid composite materials. Finally, some civil construction rehabilitation and consolidation applications of the composites reinforced with carbon fibre, Kevlar fibre or with hybrid Kevlar–carbon fabrics are highlighted in the last part of the paper.

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The Use of CFRP for Structural Reinforcement—Literature Review

Cited by 35 publications

References 138 publications

A review of FMLs performance test methods and index evaluation

A review of FMLs performance test methods and index evaluation

Thermomechanical Behavior and Microstructure Properties of Carbon Fiber Reinforced Polymer at Elevated Temperatures

Characteristics of Carbon and Kevlar Fibres, Their Composites and Structural Applications in Civil Engineering—A Review

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