Mechanical behaviors of bi-directional gradient bio-inspired circular sandwich plates under blast loading

WANG Hairen; LI Shiqiang; LIU Zhifang; LEI Jianyin; LI Zhiqiang; WANG Zhihua

doi:10.11883/bzycj-2020-0132

Volume 41 Issue 4

Apr. 2021

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WANG Hairen, LI Shiqiang, LIU Zhifang, LEI Jianyin, LI Zhiqiang, WANG Zhihua. Mechanical behaviors of bi-directional gradient bio-inspired circular sandwich plates under blast loading[J]. Explosion And Shock Waves, 2021, 41(4): 043201. doi: 10.11883/bzycj-2020-0132

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Mechanical behaviors of bi-directional gradient bio-inspired circular sandwich plates under blast loading

doi: 10.11883/bzycj-2020-0132

Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

Received Date: 2020-05-06
Rev Recd Date: 2020-06-09

Available Online: 2021-03-05

Publish Date: 2021-04-14

Abstract

Abstract

A bi-directional gradient bionic circular sandwich plate was designed by introducing out-of-plane gradient into in-plane gradient core on the basis of Royal Water-Lily. Based on this, the responses of various bi-directional gradient circular sandwich plates under different blast loadings were simulated by using the finite element software of ABAQUS. The deflections of front and back panels, compression, deformation mode and energy absorption of different cores were analyzed emphatically, and a core arrangement mode with better blast resistant performance was obtained. The results show that: compared with a single out-of-plane gradient sandwich structure, the deflection of the back panel of bi-directional gradient sandwich structures can be effectively reduced, and the energy absorption capacity of the core can be improved through the reasonable bi-directional gradient arrangement.
- bi-directional gradient,
- bio-inspired circular sandwich plate,
- blast loading,
- energy absorption

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References

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