In order to improve energy absorption abilities of carbon-fiber composite cone tubes to make composite energy-absorbing components achieve the best effect of energy-absorbing in engineering applications, the structural optimization of composite cone tubes was investigated. The influences of ratio (α/N) of conical degree (α) to number of ply(N) on the specific energy absorption (SEA) and the initial peak impact load (Pinitial) were studied. It was shown that with increase in α/N, SEA and Pinitial are both reduced; when α/N exceeds 0.54, the delamination no longer occurs in crushing process. Finally, a composite cone tube was manufactured according to the optimization results，the optimal results were validated with tests. Test results showed that after optimization, the tube’s SAE increases 15.6% (from 67.9 J/g to 78.50 J/g), its Pinitial decreases 51.8% (from 52.3KN to 25.2KN), its mass decreases 22.4% (from 55.3g to 42.9g).
宋凯，王振，朱国华，成艾国. 单向碳纤维复合材料锥管轴向吸能特性研究[J]. 振动与冲击, 2018, 37(7): 172-178.
SONG Kai WANG Zhen ZHU Guohua CHENG Aiguo. Axial energy absorption characteristics of unidirectional carbon-fiber composite cone tubes. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(7): 172-178.
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