Design and optimization for honeycomb-like structures with hybridizing hierarchy and gradient strategies

被引：6
作者：
Deng, Junjie [1 ,2 ,3 ]
Xu, Chenchen [1 ,2 ,3 ]
Wang, Xinxin [1 ,2 ,3 ]
Zhao, Ruochao [1 ,2 ,3 ]
Li, Tong [1 ,2 ,3 ]
Wang, Zhonggang [1 ,2 ,3 ]
机构：
[1] Cent South Univ, Sch Traff & Transportat Engn, Changsha 410075, Hunan, Peoples R China
[2] Minist Educ, Key Lab Traff Safety Track, Changsha, Hunan, Peoples R China
[3] State Key Lab Heavy Duty & Express High Power Elec, Changsha, Peoples R China
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2024年
关键词：
Hierarchical; gradient; honeycomb; optimization; crashworthiness; ENERGY-ABSORPTION; SQUARE TUBES; COMPRESSION;
D O I：
10.1080/15376494.2024.2429749
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To address the conflict between load conditions and material utilization, natural materials have evolved unique structural strategies exhibiting high mechanical efficiency. Building on natural hierarchy and gradient strategies, the current study constructs hybrid hierarchical gradient honeycombs (HHGH), aiming to enhance crashworthiness. Subsequently, the impact of each strategy on the crashworthiness performance is thoroughly investigated. Ultimately, the configuration of the HHGH was optimized by RBF and NSGA-II. The results indicate that the hybridization of various enhancement strategies significantly improves the crashworthiness. Quantitatively, the SEA of the HHGH is 2.91 times that of the corresponding regular honeycomb, with similar PCF.
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收藏
页数：15
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