Crashworthiness analysis of gradient branch circular tubes inspired by the structure of leaf vein
Crashworthiness analysis of gradient branch circular tubes inspired by the structure of leaf vein
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DOI：
10.1080/15376494.2023.2280911
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发表时间：
2023-11
影响因子：
2.8
通讯作者：
Jiale Huang;Jing Shen;Qiuyun Wei;Wentian Lu;Yafei Wang;Wanting Yang;Jiangping Huang;Jingren Go
中科院分区：
文献类型：
--
作者：
Jiale Huang;Jing Shen;Qiuyun Wei;Wentian Lu;Yafei Wang;Wanting Yang;Jiangping Huang;Jingren Go
根据叶片的叶脉结构，提出了梯度分支圆管的概念。通过有限元仿真研究了GBCT的耐撞性能。结果表明，GBCT的比吸能（SEA）远高于传统圆管，且在相同质量的情况下，比吸能随层次的增加而增加。大壁厚的GBCT具有较好的能量吸收性能，但也会增加力-位移曲线的波动。此外，分支点位置和梯度壁厚对GBCT的耐撞性能有很大影响。
The gradient branch circular tubes (GBCTs) were proposed based on the structure of leaf vein. Crashworthiness performances of GBCTs are investigatedviafinite element simulation. The results show that the specific energy absorption (SEA) of GBCTs is much higher than the conventional circular tube, and it increases with the increase of hierarchical level under the condition of the same mass. GBCTs with large wall thickness have better energy absorption performance, but they also increase the fluctuation of the force-displacement curve. Moreover, the branch point location and gradient wall thickness of GBCTs have a great impact on their crashworthiness performance.