Dynamic Response and Energy Dissipation of Foam Aluminum Sandwich Panel Subjected to Underwater Impulsive Loading

Zhenqian WEI; Jili RONG; Huiyang WEI; Furong LI; Zichao CHEN

doi:10.12382/bgxb.2024.0539

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Dynamic Response and Energy Dissipation of Foam Aluminum Sandwich Panel Subjected to Underwater Impulsive Loading

更新时间：2025-09-05

- Dynamic Response and Energy Dissipation of Foam Aluminum Sandwich Panel Subjected to Underwater Impulsive Loading
- Acta Armamentarii Vol. 46, Issue 6, Pages: 240539(2025)
- 作者机构：
  
  1. 北京理工大学宇航学院, 北京 100081
  2. 厦门航空有限公司, 福建厦门 361006
  3. 北京机电工程研究所, 北京 100074
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.0539
  CLC：
- Received：02 July 2024，
  
  Published Online：28 June 2025，
  
  Published：10 June 2025
- 稿件说明：
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Zhenqian WEI, Jili RONG, Huiyang WEI, et al. Dynamic Response and Energy Dissipation of Foam Aluminum Sandwich Panel Subjected to Underwater Impulsive Loading[J]. Acta Armamentarii, 2025, 46(6): 240539.
DOI：

Zhenqian WEI, Jili RONG, Huiyang WEI, et al. Dynamic Response and Energy Dissipation of Foam Aluminum Sandwich Panel Subjected to Underwater Impulsive Loading[J]. Acta Armamentarii, 2025, 46(6): 240539. DOI： 10.12382/bgxb.2024.0539.

摘要

针对泡沫铝夹芯板在水下冲击载荷下的动态响应和能量耗散机制进行深入分析

旨在为舰船和海洋工程结构的防护设计提供科学依据。通过水下爆炸等效冲击试验和流固耦合仿真

验证试验与仿真结果的一致性

量化结构参数不同芯层质量比、面板厚度和泡沫铝密度与冲击载荷对夹芯板抗冲击性能的影响。利用神经网络和遗传算法

对夹芯板结构进行多目标优化。研究结果表明:受到水下冲击载荷后

泡沫铝夹层板出现局部压溃和边界剪切等变形模式;夹芯板质量一定时

存在最佳的芯层质量比和最佳湿面板厚度

且随着无量纲冲量的增大而增大;随着湿面板厚度和芯层密度的降低

芯层压缩变形吸能效率增加;优化后的夹芯板变形和质量均显著减小。

Abstract

The dynamic response and energy dissipation mechanism of foam aluminum sandwich panel under underwater impulsive load are analyzed to provide a scientific basis for the protection design of ships and marine engineering structures.The consistency between the test and simulated results is verified through the underwater explosion equivalent impact test and simulation.The influences of structural parameters

such as core layer mass ratio

panel thickness

foam aluminum density and impact load on the impact resistance of sandwich panels are quantified.Multi-objective optimization of sandwich panel structure is carried out using neural network and genetic algorithm.The results show that the foam aluminum sandwich panels subjected to underwater impact loading exhibit the deformation patterns such as local collapse and boundary shear.When the mass of sandwich panel is constant

there exists an optimal core layer mass ratio and an optimal wet panel thickness

which increase with the increase of dimensionless impulse.As the thickness of wet panel and the density of core layer decrease

the energy absorption efficiency of the compression deformation of core layer increases.The optimized sandwich panel has significantly reduced deformation and mass.

关键词

Keywords

references

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