Blast Resistance Mechanism of Concrete Subjected to Concentric Circular Double Explosive Sources

LIU Yan; QI Xiaopeng; ZHANG Jie; WANG Zhiyong; WANG Zhihua

doi:10.12382/bgxb.2026.0046

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Blast Resistance Mechanism of Concrete Subjected to Concentric Circular Double Explosive Sources

更新时间：2026-10-13

- Blast Resistance Mechanism of Concrete Subjected to Concentric Circular Double Explosive Sources
- ACTA ARMAMENTARII Vol. 47, Issue 9, Pages: 260046(2026)
- 作者机构：
  
  1.太原理工大学航空航天学院应用力学研究所，山西太原 030024
  2.材料强度与结构冲击山西省重点实验室，山西太原 030024
  3.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
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2026.0046
  CLC： TJ301
- Received：14 January 2026，
  
  Revised：2026-08-26，
  
  Accepted：13 May 2026，
  
  Online First：07 September 2026，
  
  Published：30 September 2026
- 稿件说明：
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刘燕,亓晓鹏,张杰等.同心圆双爆源作用下的混凝土细观抗爆机理[J].兵工学报,2026,47(09):260046.

LIU Yan,QI Xiaopeng,ZHANG Jie,et al.Blast Resistance Mechanism of Concrete Subjected to Concentric Circular Double Explosive Sources[J].ACTA ARMAMENTARII,2026,47(09):260046.
刘燕,亓晓鹏,张杰等.同心圆双爆源作用下的混凝土细观抗爆机理[J].兵工学报,2026,47(09):260046. DOI： 10.12382/bgxb.2026.0046.

LIU Yan,QI Xiaopeng,ZHANG Jie,et al.Blast Resistance Mechanism of Concrete Subjected to Concentric Circular Double Explosive Sources[J].ACTA ARMAMENTARII,2026,47(09):260046. DOI： 10.12382/bgxb.2026.0046.

摘要

作为防护工程领域的关键抗爆材料，混凝土靶板在同心圆双爆点作用下的宏观毁伤效应已有诸多研究，但其细观尺度下的毁伤特性定量分析仍有待完善。基于Voronoi技术对混凝土靶板进行三维细观建模，通过有限元分析软件，针对不同靶板厚度、炸药当量比及双爆源圆心角等工况，模拟研究了同心圆双爆源作用下混凝土靶板在细观尺度的动态响应过程。研究结果表明：靶板厚度增至14 cm时，破坏模式由贯穿转为成坑，兼顾抗爆防护与经济性；控制双爆源总当量恒定，当量比从1∶1升至1∶1.5时非对称损毁显现，增至1∶2、1∶3时第一爆源

侧均为成坑破坏、第二爆源

侧均为贯穿破坏，需在高当量侧进行针对性加固；180°、135°、90°、45°圆心角分别实现全域、

侧、

侧、狭长区域定向损毁，可针对性加固高风险区以提高抗爆性能。研究成果可为定向破除与抗爆防护提供参考。

Abstract

The macroscopic damage effects of concrete target plates， as a key blast-resistant material in the field of protective engineering under concentric circular double-point explosion have been extensively investigated. However， the quantitative analysis of their mesoscale damage characteristics remains insufficient. In this paper， the three-dimensional mesoscale models of concrete target plates are established using the Voronoi technique. The mesoscale dynamic responses of concrete targets subjected to concentric dual explosions under various working conditions， including different target thicknesses， explosive equivalent ratios and central angle between the two explosive sources， are simulated and investigated using finite-element software. The results show that the failure mode transforms from perforation to cratering when the thickness of target plate increases to 14 cm， achieving a balance between blast-resistance performance and cost-effectiveness. When the total equivalent of the double explosive source remains constant， an asymmetric damage occurs as the equivalent ratio rises from 1∶1 to 1∶1.5. When the equivalent ratio further increases to 1∶2 and 1∶3， a cratering failure appears on the side of the first explosive source

while perforation failure occurs on the side of the second explosive source

， which calls for targeted reinforcement on thehigher-equivalent side. The central angles of 180°， 135°， 90°， and 45° achieve directional damage to the full domain，

side，

side， and a narrow zone， respectively. The targeted reinforcement of high-risk regions can therefore improve blast-resistance capacity. The findings provide references for both directional demolition and blast-resistant protection design.

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references

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