Effect of Impact Modifiers on Strength and Fracture Toughness of CFRPs

Semitekolos, Dionisis; Asimakopoulos, Ioannis; Dragatogiannis, Dimitrios A.; Charitidis, Costas A.

doi:10.1051/matecconf/202134901006

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Studying the mode-I interlaminar fracture toughness of composites usually determines two values: the initiation and propagation fracture toughness. [16][17][18][19][20] The initial fracture toughness was 427.6 J/m 2 for CF/EP composite, while if GF/EP composite is used, the initial fracture increases to 693.6 J/m 2 . When replacing CF/EP composite by GF/EP, the propagation fracture toughness was increased from 530.9 to 735.1 J/m 2 .…”

Section: Mode-i Interlaminar Fracture Toughness Testmentioning

confidence: 99%

Effects of fabrics reinforced on mechanical properties of epoxy epikote 828

Trung,

Dieu,

Oanh

et al. 2023

Vietnam Journal of Chemistry

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The curing agent content plays an important role in the synthesis of polymer composites, as it determines the quality and durability of these materials. Cyanethyl‐diethylenetriamine (CEDETA) was used as the curing agent for epoxy epikote 828. The effect of CEDETA content on the gel content and fracture toughness (KIC) of epoxy resin, as well as the effect of reinforcing fabric on the mechanical properties of composite materials was studied. The results showed that a CEDETA curing agent content of 26 parts per hundred resin (phr) gave the highest values of 88.2% gel content and 2.95 MPa.m1/2 fracture toughness. The tensile and flexural strengths of carbon/epoxy fabric composites (CF/EP) were significantly higher than those of glass/epoxy fabric composites (GF/EP). However, the izod impact strength and the mode‐I interlaminar fracture toughness of CF/EP composites were lower than those of GF/EP composites. The damaged surfaces of the composites were observed using scanning electron microscopy (SEM).

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Section: Mode-i Interlaminar Fracture Toughness Testmentioning

confidence: 99%

Effects of fabrics reinforced on mechanical properties of epoxy epikote 828

Trung,

Dieu,

Oanh

et al. 2023

Vietnam Journal of Chemistry

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“…Previously, many studies related to bicycle frames had been carried out, [1], [2] carried out design optimization for an Aluminum Bike Frame. The research was conducted to optimize frame materials, heat treatment, and geometries with the aim of increasing fatigue life.…”

Section: Introductionmentioning

confidence: 99%

Analysis of The Number of Layers and Types of Carbon Fiber Against Tensile Strength, Compressing Strength and Shock Load of Bicycle Frame

Susilo¹,

Wicaksono²,

Asror³

et al. 2022

Proceedings of the 2022 Annual Technology, Applied Science and Engineering Conference (ATASEC 2022)

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The need for bicycle transportation with strength and aesthetics as well as light weight is increasing, so it is necessary to innovate material technology to overcome these needs. The main components of a bicycle are the frame, wheels, handlebar, and pedals. In addition to the safety factor, what needs to be considered is the weight of the bicycle. Bicycle frame materials are generally made of steel and aluminium. To reduce the weight of the bicycle, the frame material is replaced by using carbon fibre material so that the bicycle becomes lighter and makes the rider less tired. The purpose of the study was to determine the number of layers, fibre direction and the type of carbon and Hybrid (carbon and hemp) used as bicycle frames. Using carbon fibre with plain (P), twill (T), and jacquard (J) types, with the number of layers every three layers and five layers (P3, P5, PH3, PH5, T3, T5, TH3, TH5, J3, J5, JH3, JH5), the tensile test was carried out using the BSEN 10002 standard, the compression test with the ASTM D695 standard and the impact test with the Charpy method using the ASTM E23 standard. Compression and tensile testing using a Taernogroki machine. The test results show that there is an effect of the type of carbon fibre and coating on the stress obtained from the tensile, compressive and impact tests, which show that Twill type carbon fibre is the strongest with stress of 540.60 kg/mm2, 525 kg/mm2 and 0.0157 N/ mm2, while the strongest layer type is pure carbon fibre layer type, and for the number of layers the strongest is five layers.

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Effect of Impact Modifiers on Strength and Fracture Toughness of CFRPs

Cited by 2 publications

References 14 publications

Effects of fabrics reinforced on mechanical properties of epoxy epikote 828

Effects of fabrics reinforced on mechanical properties of epoxy epikote 828

Analysis of The Number of Layers and Types of Carbon Fiber Against Tensile Strength, Compressing Strength and Shock Load of Bicycle Frame

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