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Bending response of aluminum honeycomb core carbon fiber cloth sandwich panel for electric vehicle body

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Document pages: 11 pages

Abstract: The purpose of this paper is to study the bending response of aluminum honeycomb core carbon fiber reinforced plastic (CFRP) sandwich panel for electric vehicle body under quasi-static bending. The typical load displacement curve, failure mode and energy absorption are studied. The effects of fiber direction, stacking order, layer thickness and loading speed on Crashworthiness are discussed. The finite element analysis (FEA) results are compared with the experimental results. The results show that the finite element analysis results are in good agreement with the experimental results. Numerical simulation and experimental prediction show that honeycomb sandwich panels with fiber directions of ± 30 ° and ± 45 ° have asymmetric stacking order (45 °) − 45 ° 45 ° − 45 °), and are thickr panels (0.2 mm∼0.4 mm), and smaller loading velocity (5 mm min∼30 mm min) have better crashworthiness performance. The FEA prediction is also helpful in understanding the initiation and propagation of cracks within the honeycomb sandwich panels.

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