海螺
材料科学
复合材料
抗冲击性
复合数
艾氏冲击强度试验
结构工程
极限抗拉强度
工程类
生物
古生物学
作者
Mincen Wan,Daning Hu,Baoqing Pei
出处
期刊:Materials
[MDPI AG]
日期:2022-07-27
卷期号:15 (15): 5201-5201
被引量:5
摘要
Biological armors can provide an effective protection against predators. In this study, inspired by conch shell, beetle exoskeleton, and nacre, three different types of bionic composites plates were fabricated: Bio-S, Bio-B, and Bio-N, as well as an equivalent monolithic plate formed from the same stiff material designed and manufactured by additive manufacturing, respectively. Low velocity impact tests using drop tower were conducted to study their impact resistance. Experimental findings indicated that the Bio-S composite had superior impact resistance compared with the other bionic composites and the monolithic plate. Furthermore, the influence of the ply angle on the impact resistance of the Bio-S composite plate was investigated. The (0°/30°/0°/30°) arrangement was able to provide the highest impact resistance. Finally, the crack propagation mode in Bio-S composites plates was analyzed, enhancing our understanding of the underlying mechanisms during impact. Such findings may lead to the development of superior lightweight protective structures with improved anti-impact performance.
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