期刊
THIN-WALLED STRUCTURES
卷 102, 期 -, 页码 111-121出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2016.01.023
关键词
Multi-cell tube; Analytical prediction; Crashworthiness; Hexagonal tube; Multi-objective optimization; Energy absorption
资金
- National 973 Project of China [2011CB711205]
- National Natural Science Foundation of China [11202072]
- Doctoral Fund of Ministry of Education of China [20120161120005]
- China Scholarship Council (CSC)
In this paper, the analytical formulas of mean crashing force for four different hexagonal tubes with multiple cells were first derived based on the Simplified Super Folding Element (SSFE) theory through several typical constituent elements: corner element, three-panel angular element I and three-panel angular element II. The numerical simulations of hexagonal multi-cell configurations were then correlated with the derived analytical solutions. Finally, both analytical formulas and finite element analysis (FEA) based surrogate models were employed to optimize the cross-sectional dimensions of the hexagonal tubes. From the optimization results, web-to-web (W2W) is the most efficient configuration in improving the crashing behavior, while corner-to-comer (C2C) is the worst of these four configurations. Importantly, the Pareto fronts obtained from the analytical formulas agree well with those from the FEA based surrogate models. As a result, analytical formulas could be recommended in crashworthiness optimization for the sake of computational efficiency. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据