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Carbon Fibre Composite - Crossref

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Last Updated: 03 October 2022

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Strength and Deformation Characteristics of Carbon Fibre Reinforced Composite Wrapped Aluminium Foam Beams

Sandwich structures made from an aluminium skinned foam sandwiched within a carbon fibre reinforced composite frame have the potential application for high-performance on- and off-road automotive vehicles. The deformations and failure of these types of structures are shown, and results indicate that the use of aluminium face sheets with aluminium foam aids prevented the delamination of the outer layers of carbon fibre reinforced polymers. An initial finite element model for comparison purposes was developed to depict the structure's behavior and predict the associated failure loads.

Source link: https://doi.org/10.3390/jcs6100288


Analysis of drilling-induced geometrical damages in basalt and carbon fibre-reinforced polymer (BFRP and CFRP) composites

Abstract Basalt fibre-reinforced polymer composites are expected to replace some carbon fibre-reinforced polymer composites due to their superior specific strengths and durability. The main aim of the present research is to experimentally investigate the geometrical effects of flange and CFRP composites, which is a symonymous disease. Using a solid carbide twist drill, Drilling experiments were carried out at various feed and speed levels. A Mitutoyo 361 (u2013804) digital microscope, a Mitutoyo SJ400 surface tester, recorded the surface roughness, and the microstructure was analyzed by a Zeiss Evo MA 10 scanning electron microscope. In BFRP, the experimental findings show that drilling-induced burr is more severe, and surface roughness is more noticeable in BFRP than in CFRP. From the standpoint of burr formation and micro geometrical characteristics, the present experimental results reveals that BFRP exploration is even more challenging than drilling CFRP.

Source link: https://doi.org/10.1007/s00170-022-10173-8


Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Advanced engineering applications such as precision machining of Fibre Reinforced Polymer Composites needs to be investigated more closely. Surface machining using abrasive wheels has been deemed a viable alternative for fine removal of material in FRPs. However, a conventional dry grinding process demonstrated high grinding power as a result of continuous contact of abrasive cutting edges, resulting in heat accumulation at the grinding interface. In this situation, the cutting operation is still ongoing, but heat dissipation is also becoming difficult. In this situation, temperature-driven damage on composite matrix and subsequent failure of reinforced fibres were both significant issues. The unique characteristics of ESG include heat management, progressive reduction of heat loss through progressive cutting, and increase of heat dissipation by intermittency in the cutting cycle. Experimentation of ESG on carbon fibre reinforced composite samples demonstrated promising grinding temperature reductions, which was backed by a significant decrease in grinding forces, surface imperfections, and roughness, which was justified by a significant decrease in grinding forces, surface defects, and roughness.

Source link: https://doi.org/10.1177/07316844221122073

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions