Crushing characteristics of bionic thin-walled tubes inspired by bamboo and beetle forewing. Issue 14 (1st June 2022)

• Record Type: Journal Article
• Authors: Zhang, Linwei; Zhong, Yong; Tan, Wenxiao; Gong, Chao; Hu, Yong; Bai, Zhonghao
• Is Part Of: Mechanics of advanced materials and structures. Volume 29:Issue 14(2022)
• Page Start: 2024
• Page End: 2039
• Publication Date: 2022-06-01
• Subjects: Bionic -- crashworthiness -- energy absorption -- finite element -- structures; Composite materials -- Mechanical properties -- Periodicals; Composite construction -- Periodicals; 620.118
• DOI: 10.1080/15376494.2020.1849880
• Languages: English
• ISSNs: 1537-6494

Abstract

Abstract: Bionic structures have garnered considerable attention due to their superior energy absorption capacity and light weight. This study proposes a group of bionic thin-walled tubes inspired by the microstructure of bamboo and beetle forewing. Experimental testing is conducted to validate the finite element model of bionic thin-walled tubes. The crushing performance of bionic thin-walled tubes and traditional thin-walled tubes is compared under the same weight. The bionic thin-walled tube with excellent crashing performance is further determined, that is, B-9-W. Then, parametric studies of the B-9-W tube are performed to reveal the effect of geometric parameters on crashworthiness characteristics. Finally, multi-objective optimization is carried out to seek the optimal design of B-9-W. Results show that, compared with two traditional thin-walled tubes, the specific energy absorption of the optimized B-9-W increases by 44.124% and 125.058%, respectively.