Factors influencing the resistance of bolt-connected structures to explosion shock based on explosion simulation

Yunbo Zhou; Jun Zhang; Ming Zhang; Zhibin Ye

doi:10.1117/12.3046544

27 September 2024 Factors influencing the resistance of bolt-connected structures to explosion shock based on explosion simulation

Yunbo Zhou, Jun Zhang, Ming Zhang, Zhibin Ye

Author Affiliations +

Proceedings Volume 13261, Tenth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2024); 132611P (2024) https://doi.org/10.1117/12.3046544
Event: 10th International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2024), 2024, Wuhan, China

Abstract

In this paper, the explosion impact resistance of bolt-connected structures is explored, and ALE explosion simulation algorithm is used to simulate and analyze bolt-connected platforms under explosion environment, and the accuracy of the finite element model is verified by comparison with the platform explosion test. Different modeling methods were used to explore the influence of different bolt models on the simulation results. It was found that the solid bolt model had the best effect and the error was the smallest, 1.5%, compared with the experiment. The other parameters of the bolt were kept unchanged, and only the bolt strength grade was changed. The influence of different bolt strength levels on the simulation results was explored. It was found that the maximum displacement of the target plate continued to decrease with the increasing of bolt strength level, and the anti-knock performance continued to improve. The effects of different bolt models and bolt strength grades on the explosion impact resistance of bolt-connected structures are summarized and analyzed, and some theoretical basis and reference are provided for bolt-connected body design of protected vehicles.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yunbo Zhou, Jun Zhang, Ming Zhang, and Zhibin Ye "Factors influencing the resistance of bolt-connected structures to explosion shock based on explosion simulation", Proc. SPIE 13261, Tenth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2024), 132611P (27 September 2024); https://doi.org/10.1117/12.3046544

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