Effect of rapid curing process on the properties of carbon fiber/epoxy composite fabricated using vacuum assisted resin infusion molding

Zhang, Kaomin; Gu, Yi; Li, Min; Zhang, Zuoguang

doi:10.1016/j.matdes.2013.08.065

Cited by 80 publications

(45 citation statements)

References 16 publications

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“…The strength of fiber reinforced composites depends on the properties of constituents and the interface interaction. However, when considering the flexural properties, homogeneity of the overall composite needs to be taken into account . The trend of results of flexural moduli of the composites was similar to that of flexural strengths, which was discussed earlier.…”

Section: Resultssupporting

confidence: 69%

Mechanical properties of carbon fiber/epoxy composites: Effects of number of plies, fiber contents, and angle-ply layers

et al. 2013

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Multi‐axial multi‐ply fabric (MMF) composites are becoming increasingly popular as reinforcing materials in high‐performance composites due to their high mechanical properties. This work aimed to study the effects of three variable parameters including fiber contents, numbers of plies, and layer orientations on the mechanical properties of MMF composites. Unidirectional carbon fibers and a two‐part epoxy resin were employed to produce the composite laminates using the manual lay‐up process. It was found that the mechanical properties of composites made with 5‐ply were slightly greater than 3‐ply composites. However, there was no highly significant difference between them. Generally, the angle‐ply of the composites showed the greatest effect on the mechanical properties compared with number of plies and layer orientations. The significant improvements in mechanical properties of the composites were further supported using scanning electron microscopy (SEM). Morphologies of the tensile fracture surfaces of composites revealed that the presence of fiber pulled out results in the creation of voids between the fibers and matrix polymer. This causes the mechanical properties of the composites to be reduced. Finally, the enhancement of mechanical properties of composites clearly confirmed that angle‐ply layer (0°,−35°,0°,+35°,0°) had the most significant reinforcing effect among other parameters evaluated. POLYM. ENG. SCI., 54:2676–2682, 2014. © 2013 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 69%

Mechanical properties of carbon fiber/epoxy composites: Effects of number of plies, fiber contents, and angle-ply layers

et al. 2013

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“…Although this temperature is lower than the decomposition temperature of the epoxy resin, it is larger than its glass transition temperature [13]. Hence, we observed a slight softening of the hot CFRP when handling the substrate after ALD, but no permanent deformation or change of the mechanical properties.…”

Section: B Thin-film Devices and Circuitsmentioning

confidence: 57%

Oxide Thin-Film Electronics on Carbon Fiber Reinforced Polymer Composite

Münzenrieder

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Cantarella

et al. 2017

IEEE Electron Device Lett.

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Abstract-In this letter, the direct fabrication of amorphous Indium-Gallium-Zinc-Oxide thin-film transistors (TFTs) and circuits on a commercial carbon fiber reinforced polymer (CFRP) substrate is demonstrated. The CFRP is encapsulated with a ≈10.6 µm thick resin layer, although the surface roughness and temperature sensitivity of the substrate are not ideal for the fabrication of electronic devices, we present depletion mode TFTs exhibiting a field effect mobility of 18.3 cm 2 V −1 s −1 , and a common source amplifier, providing a voltage gain of 8 dB and a −3 dB cutoff frequency of 11.5 kHz. The amplifier does not require any input bias voltage and can hence be directly used to condition signals originating from various transducers e.g. piezoelectric strain sensors used to monitor the structural integrity of CFRP elements. This opens the way to the fabrication of smart mechanical CFRP parts with integrated structural integrity monitoring systems.

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“…Nesta metodologia, a orientação das fibras deve ser no sentido do comprimento do corpo de prova e a T g é determinada pela curva do módulo de armazenamento, E', em função da temperatura. Como durante a transição vítrea o E' reduz significativamente, a T g é determinada pela intersecção de duas linhas tangentes da curva de E' [7,26,27].…”

Section: Temperaturas De Transições Características (Transição Vítunclassified

“…Altos graus de conversão (próximos a 100%) são requeridos para aplicação em componentes aeronáuticos, por isso a reação de cura deve ser completa O uso de moldagem de resina liquida é o mais utilizado e ainda muito estudado, com focos em diminuição da viscosidade, melhor impregnação da resina na fibra e menor tempo de cura. Nestes casos, utiliza-se o DMA para avaliar o efeito no processo e na temperatura de cura dos compósitos [26,31,45].…”

Section: B) Curvas Características Para Compósitosunclassified

Dynamic Mechanical Analysis (DMA) of Polymeric Composite Materials

2016

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ResumoMateriais compósitos poliméricos vem sendo estudados nas mais diversas áreas da ciência dos materiais com o objetivo de substituir outros tipos de matérias-primas e melhorar o desempenho na sua aplicação. Dentre as diversas técnicas existentes, a análise dinâmico-mecânica (DMA) tem-se mostrado uma boa alternativa para avaliar as propriedades destes compósitos, em especial os parâmetros viscoelásticos em função do tempo, temperatura ou frequência. Propriedades importantes como como módulos de armazenamento e perda, e temperaturas de transição podem ser obtidas através desta técnica. O presente artigo traz uma revisão a respeito da técnica de DMA, suas vantagens em relação a outras análises térmicas e mecânicas, o comportamento de materiais compósitos poliméricos durante a análise e os parâmetros que podem ser estudados por ela. A importância da análise no estudo de materiais de engenharia também é relatado, em especial em aplicações aeroespaciais. Palavras-chaveCompósitos poliméricos; análise dinâmico-mecânica (DMA); materiais de engenharia; compósitos estruturais. Dynamic Mechanical Analysis (DMA) of Polymeric Composite Materials AbstractPolymeric composite materials have been studied in many fields in materials science, with the aim of replacing other materials and reaching better performance when applied. Among the existing techniques, a great alternative to evaluate composites properties is dynamic mechanical analysis (DMA), especially when viscoelastic parameters need to be studied as a function of time, temperature or frequency.Important properties, such as storage modulus, loss modulus and transitions temperaturescan be determined by this technique. The present paper brings a review about DMA, the advantages of this technique compared to others thermal and mechanical analysis, the behavior of polymeric composite materials during the tests and the properties which can be determined by DMA. The importance of DMA in the study of engineering materialsis also presented, especially when applied in aircraft structures.

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Effect of rapid curing process on the properties of carbon fiber/epoxy composite fabricated using vacuum assisted resin infusion molding

Cited by 80 publications

References 16 publications

Mechanical properties of carbon fiber/epoxy composites: Effects of number of plies, fiber contents, and angle-ply layers

Mechanical properties of carbon fiber/epoxy composites: Effects of number of plies, fiber contents, and angle-ply layers

Oxide Thin-Film Electronics on Carbon Fiber Reinforced Polymer Composite

Dynamic Mechanical Analysis (DMA) of Polymeric Composite Materials

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