Investigation of flexural properties and failure behaviour of biaxial braided CFRP

Yuan, Hao; Cai, Rui; Meng, Qingshi; Wang, Lin

doi:10.1016/j.polymertesting.2020.106545

Cited by 7 publications

(4 citation statements)

References 31 publications

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“…The load of all samples increases linearly with displacement before the peak value. Similar experimental phenomena have been reported by other researchers [25]. For 0°-CFRP, when the load reaches the maximum value, the specimen begins to fail, and the load gradually decreases to a lower level with the increase of displacement.…”

Section: Flexural Properties Of the Cfrp Laminatesupporting

confidence: 89%

Flexural properties of lightweight carbon fiber/epoxy resin composite sandwiches with different fiber directions

Liu

Zhang

Zhu

et al. 2022

Mater. Res. Express

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In this study, structurally efficient carbon fiber reinforced plastic (CFRP) sandwiches were developed via introducing pumice/Mg composite foams as new core material. The effects of the fiber direction (0°, 45°, 90°) on the mechanical properties of CFRP laminates and composite sandwiches were studied. Compared with 45°-CFRP and 90°-CFRP laminates, 0°-CFRP laminate exhibits outstanding flexural properties due to different failure modes. Correspondingly, the 0°-CFRP/PMSF composite sandwiches exhibit higher flexural strength than 45°-CFRP/PMSF and 90°-CFRP/PMSF composite sandwiches. The as-prepared composite sandwiches are lightweight and have higher specific strength than some traditional sandwiches. The different flexural behaviors of three types of sandwiches were observed to explain the failure mechanisms.

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Section: Flexural Properties Of the Cfrp Laminatesupporting

confidence: 89%

Flexural properties of lightweight carbon fiber/epoxy resin composite sandwiches with different fiber directions

Liu

Zhang

Zhu

et al. 2022

Mater. Res. Express

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show abstract

“…Proper silane coupling process might lead to improved adhesion which results in better flexural performance at braided composite. [17,33,34]…”

Section: Flexural Strength Properties Of Braided Compositesmentioning

confidence: 99%

Effect of silane coupling treatments on mechanical properties of epoxy based high‐strength carbon fiber regular (2 x 2) braided fabric composites

Eryılmaz

Sancak

2021

Polymer Composites

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Braiding technique is one of the most cost-effective and versatile methods to manufacture braided preforms for producing textile reinforced composites.Carbon fiber is one of the most common reinforcing fibers having high strength and modulus used in high-performance composites. In this study, epoxy resin was modified with 3-aminopropyltriethoxysilane (APTES) and 3-aminopropylmethyldimethoxysilane (APMDMS) in order to enhance interfacial adhesion between matrix and carbon fiber. Composites were produced by vacuum-assisted resin infusion method using braided fabrics which were manufactured from a high-strength standard modulus type of carbon fiber (T700S) by using a radial braiding machine. Epoxy resin was treated with silane at different concentrations from 0.0% to 1.0%. According to the mechanical results, the ideal (optimum) concentration of APTES and APMDMS for the matrix modification has been around 0.5 wt% of the epoxy system. Also, the mechanical properties of APTES-treated epoxy composites are slightly higher than those of APMDMS-treated epoxy composites at the same concentration. When it is compared to silane untreated composite, 0.5 wt% of APTES/APMDMS silane treated epoxy/carbon braided composites have led to an increase of 7.71/6.16% and 7.65/6.05% in tensile and flexural strength while the corresponding increase has resulted in 17.48/13.51% and 16.63/13.33% in terms of tensile and flexural modulus, respectively. Impact testing results indicate that 0.5 wt% of APTES and APMDMS composites are improved 6.87% and 4.31% compared to untreated composites, respectively.

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“…The flexural properties of epoxy/carbon braided composite are affected by the fiber volume fractions, which is determined by the production process, and adhesion between fiber-matrix component. Proper silane coupling process might lead to improved adhesion which results in better flexural performance at braided composite [16,32,33].…”

Section: Flexural Strength Properties Of Braided Compositesmentioning

confidence: 99%

Mechanical Investigation of Epoxy Based High-Strength Carbon Fiber Braided Composites Modified with Silane Coupling Agents

Eryılmaz

Sancak

2021

Preprint

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Braiding technique is one of the most cost-effective and versatile methods to manufacture braided preforms for producing textile reinforced composites which have been utilized in a number of applications such as aerospace and automotive sectors. Carbon fiber is one of the most common reinforcing fibers having high strength and modulus used in high-performance composites. In this study, epoxy resin was modified with 3 – aminopropyltriethoxysilane (APTES) and 3 – aminopropylmethyldimethoxysilane (APMDMS) in order to enhance interfacial adhesion between matrix and carbon fiber. Composites were produced by vacuum-assisted resin infusion method (VARIM) using braided carbon fabrics and epoxy resin which was treated with silane at different concentrations (from 0.0% to 1.0%). Braided fabrics were manufactured from a high-strength standard modulus type of carbon fiber and using a radial braiding machine. According to the mechanical results, the ideal (optimum) concentration of APTES and APMDMS for the matrix modification has been around 0.5 wt% of the epoxy system. Also, the mechanical properties of APTES-treated epoxy composites are slightly higher than those of APMDMS-treated epoxy composites at the same concentration. When it is compared to silane untreated composite, 0.5 wt% of APTES/APMDMS silane treated epoxy/carbon braided composites have led to an increase of 7.71/6.16 and 7.65/6.05 % in tensile and flexural strength while the corresponding increase has resulted in 17.48/13.51 and 16.63/13.33 % in terms of tensile and flexural modulus, respectively. Impact testing results indicate that 0.5 wt% of APTES and APMDMS composites are improved 6.87 and 4.31 % compared to untreated composites, respectively.

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Investigation of flexural properties and failure behaviour of biaxial braided CFRP

Cited by 7 publications

References 31 publications

Flexural properties of lightweight carbon fiber/epoxy resin composite sandwiches with different fiber directions

Flexural properties of lightweight carbon fiber/epoxy resin composite sandwiches with different fiber directions

Effect of silane coupling treatments on mechanical properties of epoxy based high‐strength carbon fiber regular (2 x 2) braided fabric composites

Mechanical Investigation of Epoxy Based High-Strength Carbon Fiber Braided Composites Modified with Silane Coupling Agents

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