Theoretical and experimental study of the bending collapse of partially reinforced CFRP–Steel square tubes

Lavayen-Farfán, Daniel; Butenegro, José Antonio; Boada, María Jesús López; Martinez-Casanova, Miguel Angel; Rodríguez-Hernández, Jorge

doi:10.1016/j.tws.2022.109457

Cited by 14 publications

(8 citation statements)

References 40 publications

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“…The demand for carbon fiber-reinforced polymer (CFRP) composite materials due to their lightweight and high performance has swiftly increased over the past years, which has been mainly driven by the aerospace, automotive, defense, wind turbine, marine, leisure, and construction industries [ 1 , 2 , 3 , 4 , 5 , 6 ]. The rapid increase in the demand for CFRP composite materials is motivated primarily by their high specific strength and specific stiffness, high fatigue resistance and durability, good corrosion resistance, and low density.…”

Section: Introductionmentioning

confidence: 99%

Novel Thermoplastic Composites Strengthened with Carbon Fiber-Reinforced Epoxy Composite Waste Rods: Development and Characterization

et al. 2022

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The increasing use of carbon fiber and epoxy resin composite materials yields an increase in the amount of waste. Therefore, we present a solution consisting of composites manufactured by hot pressing, employing polyamides (either PA11 or PA12) and a mechanically recycled carbon fiber-reinforced polymer (CFRP) as reinforcement. The main objectives are to study the manufacturing of those composites, to evaluate the fiber distribution, and to perform a mechanical, dynamical, and thermomechanical characterizations. The X-ray micro-computed tomography (μCT) shows that the fibers are well-distributed, maintaining a homogeneous fiber volume fraction across the material. The variability in the results is typical of discontinuous fiber composites in which the fibers, although oriented, are not as homogeneously distributed as in a continuous fiber composite. The mechanical and dynamic properties barely differ between the two sets of composites. A dynamic-mechanical analysis revealed that the glass transition temperature (Tg) increases slightly for both composites, compared to the polymers. These results illustrate the viability of the recycling and reuse route for preventing the deterioration of carbon fibers and promoting the subsequent reduction in the environmental impact by employing a thermoplastic matrix.

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Section: Introductionmentioning

confidence: 99%

Novel Thermoplastic Composites Strengthened with Carbon Fiber-Reinforced Epoxy Composite Waste Rods: Development and Characterization

et al. 2022

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“…Other influential factors encompass the number of composite layers, mass considerations, 15 and the application of reinforced length of composite on the metal surface. 32 Therefore, the objective of this research paper is to experimentally and numerically investigate the quasi-static crashworthiness behavior of adhesively-bonded double hat-section CFRP/ aluminum hybrid beams under transverse loading, which has not been previously addressed in existing studies. In this regard, the effects of various factors such as the CFRP-reinforcement configuration, numbers of CFRP layers, CFRP ply-angle, CFRP-reinforced length, and aluminum/CFRP mass, will be investigated.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, researchers such as Zhang et al, 15 Sun et al, 16 Kim et al, 18 Sun et al, 31 Shen et al, 20 and Chen et al 28 have illustrated the significant influence of composite ply‐angles on EA and failure mechanisms in hybrid structures. Other influential factors encompass the number of composite layers, mass considerations, 15 and the application of reinforced length of composite on the metal surface 32 . Therefore, the objective of this research paper is to experimentally and numerically investigate the quasi‐static crashworthiness behavior of adhesively‐bonded double hat‐section CFRP/aluminum hybrid beams under transverse loading, which has not been previously addressed in existing studies.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation on the crashworthiness performance of double hat‐section Al‐CFRP beam subjected to quasi‐static bending test

Bidadi,

Hampaiyan Miandowab,

Saeidi Googarchin

et al. 2024

Polymer Composites

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Nowadays, hybrid structures, which combine low‐density composites with low‐cost thin‐walled metals, have shown great effect in enhancing the performance of automotive body structures, especially the energy absorber components. This study focuses on the experimental and numerical investigation of the bending energy absorption behavior of CFRP/aluminum hybrid double hat‐section beams used in the side part of the car body. In the experimental section, two types of double hat‐section beams were fabricated: aluminum and Al/CFRP. These beams were then subjected to quasi‐static three‐point bending tests. The results demonstrated that the hybrid beam exhibited superior energy absorption capabilities compared to the single beam. Subsequently, a finite element model was developed using LS‐Dyna software and was validated by comparing the experimental and numerical load–displacement results. In‐depth numerical analyses were conducted to investigate the influence of various design parameters, including CFRP‐reinforcement configuration, numbers of CFRP layers, CFRP ply‐angle, CFRP reinforced length, and aluminum/CFRP mass, on crashworthiness indicators. The numerical findings indicate that the hybrid beam with , ply‐angles exhibited better crash force efficiency (CFE) and specific energy absorption (SEA) compared to other ply‐angles, respectively. Furthermore, increasing the number of CFRP layers within the total beam's mass improved its energy absorption capacity. It was also revealed that the CFRP length on the upper and lower hats could be considered as 42.5% of the total aluminum beam length, as opposed to the full CFRP length, providing enhanced energy absorption capabilities.Highlights Bending behavior of the Al and Al/CFRP double hat section beams. Effects of variable thickness and identical mass on the double hat section beam. Effects of variable ply angle and number of CFRP layers on the hybrid beams. Discrete effect of CFRP reinforcement configurations and inner CFRP lengths.

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“…CFRPs have revolutionized several industries, including aerospace, automotive, construction, marine, and sports equipment manufacturing [ 1 ]. In the aerospace and automotive industries, CFRPs enable lighter and more fuel-efficient and innovative designs while improving crashworthiness in the case of automotive [ 2 , 3 , 4 , 5 ]. CFRPs benefit sports equipment, marine vessels, and construction through lighter, stiffer, and more durable products, improved performance, and longevity [ 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Sustainable Composites Incorporating a Biobased Thermoplastic Matrix and Recycled Aerospace Prepreg Waste: Development and Characterization

Butenegro,

Bahrami,

Swolfs

et al. 2023

Polymers

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Carbon fiber-reinforced polymer (CFRP) composite materials are widely used in engineering applications, but their production generates a significant amount of waste. This paper aims to explore the potential of incorporating mechanically recycled aerospace prepreg waste in thermoplastic composite materials to reduce the environmental impact of composite material production and promote the use of recycled materials. The composite material developed in this study incorporates a bio−based thermoplastic polymer, polyamide 11 (PA11), as the matrix material and recycled aerospace prepreg waste quasi-one-dimensionally arranged as reinforcement. Mechanical, thermal, and thermomechanical characterizations were performed through tensile, flexural, and impact tests, as well as differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). Compared to previous studies that used a different recycled CFRP in the shape of rods, the results show that the recycled prepregs are a suitable reinforcement, enhancing the reinforcement-matrix adhesion and leading to higher mechanical properties. The tensile results were evaluated by SEM, and the impact tests were evaluated by CT scans. The results demonstrate the potential of incorporating recycled aerospace prepreg waste in thermoplastic composite materials to produce high-performance and sustainable components in the aerospace and automotive industries.

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Theoretical and experimental study of the bending collapse of partially reinforced CFRP–Steel square tubes

Cited by 14 publications

References 40 publications

Novel Thermoplastic Composites Strengthened with Carbon Fiber-Reinforced Epoxy Composite Waste Rods: Development and Characterization

Novel Thermoplastic Composites Strengthened with Carbon Fiber-Reinforced Epoxy Composite Waste Rods: Development and Characterization

Experimental and numerical investigation on the crashworthiness performance of double hat‐section Al‐CFRP beam subjected to quasi‐static bending test

Novel Sustainable Composites Incorporating a Biobased Thermoplastic Matrix and Recycled Aerospace Prepreg Waste: Development and Characterization

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