Strengthening Effect of Polyurea on Multi-layer Blast-resistant Structure Subjected to Combined Action of Shock Wave and Fragments

Dong MA; Cheng WANG; Nan SHAO; Jianshu WEI

doi:10.12382/bgxb.2024.0798

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Strengthening Effect of Polyurea on Multi-layer Blast-resistant Structure Subjected to Combined Action of Shock Wave and Fragments

更新时间：2025-09-05

- Strengthening Effect of Polyurea on Multi-layer Blast-resistant Structure Subjected to Combined Action of Shock Wave and Fragments
- Acta Armamentarii Vol. 46, Issue 7, Pages: 240798(2025)
- 作者机构：
  
  1. 北京理工大学爆炸科学与安全防护全国重点实验室, 北京 100081
  2. 江苏爵格工业集团有限公司, 江苏盐城 224100
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.0798
  CLC：
- Received：03 September 2024，
  
  Online First：12 August 2025，
  
  Published：31 July 2025
- 稿件说明：
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Dong MA, Cheng WANG, Nan SHAO, et al. Strengthening Effect of Polyurea on Multi-layer Blast-resistant Structure Subjected to Combined Action of Shock Wave and Fragments[J]. Acta Armamentarii, 2025, 46(7): 240798.
DOI：

Dong MA, Cheng WANG, Nan SHAO, et al. Strengthening Effect of Polyurea on Multi-layer Blast-resistant Structure Subjected to Combined Action of Shock Wave and Fragments[J]. Acta Armamentarii, 2025, 46(7): 240798. DOI： 10.12382/bgxb.2024.0798.

摘要

为研究聚脲涂层对抗爆结构防护性能影响

提出了一种聚脲增强多层复合抗爆结构

分析了抗爆结构在冲击波与破片联合载荷作用下的防护特性。计算并获取了炸药的超压拟合公式

采用激光三维扫描仪测量了抗爆结构在联合载荷作用下的离面位移

超压与位移的实验结果与模拟结果吻合较好。研究结果表明

聚脲涂层所在的位置极大地影响抗爆结构的防护效果。涂层位于夹芯钢板迎爆面时的防护效果比涂层位于面板以及夹芯钢板的背爆面更好

可以有效减少破片的穿透率与着靶数

削弱联合载荷最终作用于背板的能量

降低背板中心的振动幅度与振动加速度。这项研究可以为多层抗爆结构的设计提供参考。

Abstract

In order to investigate the effect of polyurea coating on the protective performance of blast-resistant structure

a multi-layer blast-resistant structure reinforced with polyurea is proposed

and the protective characteristics of blast-resistant structure under the actions of shock wave and fragments are analyzed.The overpressure fitting formula of explosive is calculated and obtained

and out-of-plane displacement of blast-resistant structure is measured using a laser 3D scanner.Experimental results of overpressure and displacement are in good agreement with simulated results.Research results show that the position of polyurea coating has great effects on the protective ability of blast-resistant structure.The protective effect of coating located on blast-facing side of sandwich steel plate is better than those of coating located on the back-blast sides of face plate and sandwich steel plate.It can effectively reduce the penetration rate and impact number of fragments

weaken the energy of the combined load ultimately acting on the back plate

and reduce the vibration amplitude and acceleration at the center of back plate.This study can provide a reference for the design of multi-layer blast-resistant structure.

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references

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