The impact behavior and energy absorption of two types of composite tubes, fabricated from carbon fabrics by the resin transfer molding and from carbon prepregs by the lay-up method, were investigated experimentally and numerically. In impact tests, outward-splaying crush caps with different fillet radii were used. Different types of crushing behavior of the tubes were simulated by the finite-element analysis, including a progressive failure function and considering the possibility of delamination. A comparison with experimental results confirmed that, the finite-element analysis was able to well predict the crushing behavior of the composite tubes, showing that the specific energy absorption of the prepreg composite tubes was always about 20% lower than that of the braided ones.
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Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 57, No. 4, pp. 645-658, July-August, 2021. Russian DOI: 10.22364/mkm.57.4.03.
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Hwang, S.F., Wu, C.Y. Impact Behavior and Energy Absorption of Composite Tubes Made from Fiber Fabrics or Prepregs. Mech Compos Mater 57, 449–458 (2021). https://doi.org/10.1007/s11029-021-09968-9
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DOI: https://doi.org/10.1007/s11029-021-09968-9