Experimental studies of low-velocity impact behavior on hybrid metal wire net/woven carbon-fiber reinforced composite laminates

Wan, Yun; Yao, Jianhua; Li, Hao; Huang, Yonghu; You, Peiyu; Xu, Yichen; Lei, Zhiwei

doi:10.1016/j.coco.2022.101185

Cited by 17 publications

(6 citation statements)

References 11 publications

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“…Future studies should also be conducted for structures with holes that are exposed to torsional loads, such as shaft components. Additionally, it is recommended to analyze the internal damage modes of composites with both molded and drilled holes using non‐destructive techniques such as X‐ray CT 22,23 and ultrasonic C‐scan 24 to highlight the damage mechanisms during flexural tests.…”

Section: Discussionmentioning

confidence: 99%

Experimental and numerical analysis of drilled‐ and molded‐hole glass fiber reinforced polymer matrix (GFRP) composites

Cengiz,

Öztürk,

Sabah

et al. 2024

Polymer Composites

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Drilling glass fiber reinforced polymer matrix (GFRP) composites typically causes burrs, splintering, and microcracks within the GFRP structure, as well as delamination, fiber pull‐out, and thermal degradation of the polymer matrix. Designing and manufacturing molded‐hole GFRP components, as opposed to drilling, has recently been proposed as a promising method for overcoming the issues associated with drilling, for which there is limited research. Specifically, the mechanical response of molded‐hole GFRP has not been fully addressed in the literature. In the present study, molded and drilled GFRP composites with epoxy matrix were fabricated by hand lay‐up, and then the samples were analyzed utilizing experimental and numerical analysis techniques. Stress and strain analyses of GFRP samples were performed in Ansys Transient Structural Analysis. Although the fiber orientations of the layer geometries [0°/90°] and 3D models were the same, an additional layer was defined in the direction of the fiber orientation [45°/−45°] of molded‐hole composites to simulate the fiber accumulation effect. Experimental findings revealed that the flexural strength of molded composites was 12% greater than that of drilled composites. According to the numerical analysis, 98.7% proximity was achieved between the experimental and numerical results. Thus, the present study has provided numerical modeling to understand the flexural strength of molded composites for the first time, which will contribute to the increased use of molded composites in numerous applications in the fields of aerospace, automotive, and marine.Highlights Drilled‐ and molded‐hole GFRP composites were produced by hand lay‐up. Flexural properties of the composites were examined via 4P bending tests. Flexural strength of molded composites was higher than that of drilled ones. 98.7% proximity was achieved between the experimental and FEM results. A unified FEM method is proposed for the molded‐hole composites.

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Section: Discussionmentioning

confidence: 99%

Experimental and numerical analysis of drilled‐ and molded‐hole glass fiber reinforced polymer matrix (GFRP) composites

Cengiz,

Öztürk,

Sabah

et al. 2024

Polymer Composites

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“…After the LVI event, the damages on the composite structures usually consist of fiber breakage, matrix crack, and interface delamination. 14,15 In our previous study, [16][17][18] it is indicated that minor incident energy of drop weight could cause some barely visible damage to the composite structures, resulting in a significant reduction in the bearing capacity of the structure. As a result, fiber-metal laminates (FML), a combination of sheets of fiber-reinforced polymer and metals, are designed and used in various aerospace applications nowadays.…”

Section: Introductionmentioning

confidence: 98%

An experimental study on the failure mechanism of local-strengthening glass fiber reinforced polymer T-joints under/after the low-velocity impact loading

Wu,

You,

et al. 2023

Journal of Composite Materials

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In this study, an experimental methodology, consisting of low-velocity impact (LVI) and quasi-static compressive test, is conducted to investigate the performance and failure mechanism of GFRP T-joints, fabricated by vacuum-assisted resin infusion process (VARI), when subjected to out-of-plane LVI loading at the corner. Further, the effect of LVI loading on the reduction of strength is analyzed by the tensile test after LVI. In order to improve the strength of the GFRP T-joints, one layer of stainless-steel wire net (SSWN) is inserted into the corner of the T-joints structure. The experimental results indicate that the addition of SSWN decreases the damaged area of delamination in the web, meanwhile, connecting the nearby GFRP layers to avoid the structure failure suddenly, which improves its performance of tensile test after LVI.

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“…As a carbon fiber-reinforced composite material, carbon fiber-reinforced plastic (CFRP) possesses attributes such as lightweight, high strength, high modulus, excellent corrosion resistance, wear resistance, and fatigue resistance. Consequently, it finds increasingly widespread applications in aerospace, national defense science and technology, military, sports, and medical fields [1,2]. When integrating CFRP structural components with other parts, the typical methods involve the use of bolts and rivets for connection.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of design and manufacture for CFRP bamboo rat tooth bionic drill bit

Su,

Liu,

Che

et al. 2024

Preprint

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The section of bamboo eaten by bamboo rats is smooth and clean, which is due to the unique lower front teeth of bamboo rats. Based on this, a new tool was designed to reduce the defects in CFRP processing. An experimental comparison is conducted between the new bionic tool and the conventional dovetail and fine-toothed tool. The results show that the bionic new tool has smaller axial force and delamination factor, and the defect formation rate is slowed down under the bionic new tool. The bionic tool significantly inhibits the defect formation and improves the hole making quality of CFRP. But the drilling temperature of the new bionic tool is higher than that of the dovetail - fine tooth tool. Additionally, the comparison test of the new bionic tools with diameters of 12mm and 6mm found that the closer the tool tooth structure is to the true size of the bamboo rats lower front teeth, the better the processing effect of CFRP.

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Experimental studies of low-velocity impact behavior on hybrid metal wire net/woven carbon-fiber reinforced composite laminates

Cited by 17 publications

References 11 publications

Experimental and numerical analysis of drilled‐ and molded‐hole glass fiber reinforced polymer matrix (GFRP) composites

Experimental and numerical analysis of drilled‐ and molded‐hole glass fiber reinforced polymer matrix (GFRP) composites

An experimental study on the failure mechanism of local-strengthening glass fiber reinforced polymer T-joints under/after the low-velocity impact loading

Experimental study of design and manufacture for CFRP bamboo rat tooth bionic drill bit

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