Multiple Crashworthiness Evaluation of Double‐V Negative Poisson's Ratio‐Filled Square Tube Under Axial Impact

Sun, Huiming and Zhou, Hanting and Zhang, Jiangfan and Wang, Liangmo and Wang, Tao (2022) Multiple Crashworthiness Evaluation of Double‐V Negative Poisson's Ratio‐Filled Square Tube Under Axial Impact. physica status solidi (b). ISSN 0370-1972

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Abstract

Thin-walled structures are used extensively in the passive safety of vehicles to absorb energy. The thin-walled tube is already a traditional structure with excellent energy absorption. Negative Poisson's ratio (NPR) structures produce an inward concentration to increase the stiffness of the structure during axial compression. The concept of fluctuation of crushing force (FoCF) is introduced herein to evaluate this new energy-absorbing box as an energy-absorbing device based on the traditional energy absorption evaluation index. Based on experimental validation, a finite-element model is developed that can accurately predict the crashworthiness of the double-V NPR-filled square tube (DVFST). The following parameters, such as out-of-plane thickness, meta-cell half-width beam thickness, and beam angle tube thickness, are conducted to assess the crashworthiness of the DVFST structure. The first thing that should be considered in the design of the DVFST structure is the half-width of the cell, followed by the angle of the long beam, and then the relative wall thickness of the long and short beams. The DVFST structure has the potential to become an excellent energy-absorbing device by adjusting its parameters.

Item Type:
Journal Article
Journal or Publication Title:
physica status solidi (b)
Additional Information:
This is the peer reviewed version of the following article:Sun, H., Zhou, H., Zhang, J., Wang, L. and Wang, T. (2022), Multiple Crashworthiness Evaluation of Double-V Negative Poisson's Ratio-Filled Square Tube Under Axial Impact. Phys. Status Solidi B 2200388. https://doi.org/10.1002/pssb.202200388 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/pssb.202200388 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2203
Subjects:
ID Code:
178332
Deposited By:
Deposited On:
31 Oct 2022 11:05
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2022 11:56