Rights statement: 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.
Accepted author manuscript, 1.19 MB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Multiple Crashworthiness Evaluation of Double‐V Negative Poisson's Ratio‐Filled Square Tube Under Axial Impact
AU - Sun, Huiming
AU - Zhou, Hanting
AU - Zhang, Jiangfan
AU - Wang, Liangmo
AU - Wang, Tao
N1 - 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.
PY - 2022/12/31
Y1 - 2022/12/31
N2 - 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.
AB - 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.
KW - Axial impact
KW - Crashworthiness
KW - Double‐V structure
KW - negative Poisson’s ratio
KW - parametric analyses
KW - thin-walled tubes
U2 - 10.1002/pssb.202200388
DO - 10.1002/pssb.202200388
M3 - Journal article
VL - 259
JO - physica status solidi (b)
JF - physica status solidi (b)
SN - 0370-1972
IS - 12
M1 - 2200388
ER -