A Method for Precise Control of Near-field Explosive Loading in Drop-weight Impact Simulation

MA Jian; LIU Ruichao; CUI Can; ZHANG Weiming; WU Linzhi

doi:10.12382/bgxb.2025.0832

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A Method for Precise Control of Near-field Explosive Loading in Drop-weight Impact Simulation

更新时间：2026-06-16

- A Method for Precise Control of Near-field Explosive Loading in Drop-weight Impact Simulation
- Acta Armamentarii Vol. 47, Issue 5, Pages: 250832(2026)
- 作者机构：
  
  哈尔滨工程大学航空航天学院，黑龙江哈尔滨 150001
  目标易损性评估全国重点实验室，河南洛阳 471023
  军事科学院国防工程研究院，河南洛阳 471023
  哈尔滨工业大学航天学院，黑龙江哈尔滨 150001
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.0832
  CLC： O347.4
- Received：09 September 2025，
  
  Online First：13 February 2026，
  
  Published：2026-05
- 稿件说明：
移动端阅览
MA Jian, LIU Ruichao, CUI Can, et al. A Method for Precise Control of Near-field Explosive Loading in Drop-weight Impact Simulation[J]. Acta Armamentarii, 2026, 47(5): 250832.
DOI：

MA Jian, LIU Ruichao, CUI Can, et al. A Method for Precise Control of Near-field Explosive Loading in Drop-weight Impact Simulation[J]. Acta Armamentarii, 2026, 47(5): 250832. DOI： 10.12382/bgxb.2025.0832.

摘要

在真实化爆试验条件下，施加于建筑物构件的爆炸近区应力（波）载荷由于爆炸火球区的影响，存在载荷参数测不准，甚至测不到的问题，为此采用落锤冲击这种非爆炸方式来模拟爆炸近区应力（波）载荷具有现实的需求。要保证落锤冲击载荷与爆炸近区应力（波）载荷一致需要重点关注两个问题，一是载荷加载时间历程的一致性，二是面载荷分布的一致性。聚焦于问题一，对爆炸载荷时间历程进行了分析，以此为导向，表征了聚氨酯垫层动静态本构，系统分析了冲锤厚度、冲击速度和垫层厚度等关键因素对冲击载荷时程的影响规律。构建了高动能落锤冲击载荷预测模型，模型预测范围为：峰值压力

max

∈[2.77×10

Pa，6.08×10

]

，正相冲量

∈[1.02×10

s，8.24×10

]

，持续时间

∈[4.22×10

-4

s，2.68×10

-3

]。

实现了载荷时程的精准调控，为面载荷分布特性研究奠定了基础。

Abstract

Under the conditions of realistic blast test，the near-field blast loads applied to the building components often suffer from the uncertainties in load parameters and cannot even be measured in some cases due to the influence of explosion fireball zone. Therefore，there is a practical need to employ the non-explosive methods，such as drop-weight impact，to simulate the near-field blast loads. To ensure the consistency between drop-weight impact loads and near-field blast loads，two issues must be addressed：the consistency of the load-time history，and the consistency of the surface load distribution. This study focuses on the first issue. The

time history of the blast load is analyzed，and based on this，the dynamic and static constitutive behaviors of the polyurethane cushion layers are characterized. Subsequently，the influences of key factors such as hammerhead mass，impact velocity，and cushion thickness on the impact load-time history are systematically investigated. Based on this，a predictive model for high-energy drop-weight impact loads is established. The prediction ranges of the model are peak pressure

max

∈[2.77×10

Pa，6.08×10

]

，positive-phase impulse

∈[1.02×10

Pa·s，8.24×10

Pa·s

]

，and duration

∈[4.22 ×10

-4

s，2.68 ×10

-3

]

，enabling the precise regulation of load time histories. This work lays the foundation for studying the distribution characteristics of surface load.

关键词

Keywords

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