Journal
THIN-WALLED STRUCTURES
Volume 122, Issue -, Pages 42-51Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2017.10.010
Keywords
Microstructure; Bionic multi-cell tube; Theoretical validation; Crashworthiness; Multiobjective optimization
Categories
Funding
- National Science Foundation [51475153]
- Science Foundation of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body [71575004]
- Shenzhen Science and Technology Program [JCYJ20160530193357681]
Ask authors/readers for more resources
Multi-cell tubes have been widely used in vehicle engineering for their excellent energy absorption capacity. In this paper, a group of bionic multi-cell tubes (BMCTs) with quadrilateral, hexagonal and octagonal sections were proposed. The BMCTs were constructed by filling the cylindrical tubes into different position of multi-cell tubes (MCTs), which was inspired by the microstructure of beetle forewings. The finite element (FE) models under axial impact loading were established and then validated by the Simplified Super Folding Element (SSFE) theory. The crashworthiness of different BMCTs and MCTs was compared, and the results showed that the sixth type of bionic multi-cell tube with octagonal section (O-BMCT-6) has the best crashing performance. Then, the multi objective optimization design of O-BMCT-6 was conducted by using non-dominated sorting genetic algorithm II (NSGA-II) and radial basis function (RBF) metamodels. The optimal O-BMCT-6 showed superior crashworthiness and could be used as an energy absorber.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available