复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (10): 77-82.DOI: 10.19936/j.cnki.2096-8000.20251028.012

• 防弹防爆复合材料 • 上一篇    下一篇

界面结构对复合材料中冲击应力波传播影响研究

唐博   

  1. 重庆交通大学 机电与车辆工程学院,重庆 400074
  • 收稿日期:2025-06-23 出版日期:2025-10-28 发布日期:2025-12-02
  • 作者简介:唐博(2000—),男,硕士研究生,研究方向为爆炸与冲击动力学响应,1344095610@qq.com。

Study on the influence of interface structure on the propagation of impact stress waves in composite materials

TANG Bo   

  1. School of Mechanical and Electrical Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2025-06-23 Online:2025-10-28 Published:2025-12-02

摘要: 复合材料由于整体韧性和抗冲击性能优异,被广泛应用于防弹和防爆领域,复合材料内部应力波传播对于其抗冲击性能至关重要。针对由两层复合材料组成的抗冲击材料,通过使用有限元软件研究在爆炸产生的冲击载荷作用下,不同界面结构、结构参数对应力波传播的影响。研究结果表明:爆炸产生的冲击载荷到达复合材料时,部分以应力波的形式继续在材料内部传播。当应力波到达界面时,由于两侧材料的波阻抗不同,应力波发生反射和透射。相较于平整界面,三角形界面对应力波的衰减作用较强。随着三角形界面的角度减小,到达第二层复合材料的应力波峰值逐渐下降。相同角度下,应力波峰值随界面厚度增大而先减小后增大。对于防弹和防爆领域,该研究具有重要的意义。

关键词: 复合材料, 应力波传播, 界面结构, 爆炸冲击波, 斜入射

Abstract: Composite materials are widely used in the field of ballistic and explosion prevention due to their excellent overall toughness and impact resistance, and the internal stress wave propagation of composite materials is very important to their impact resistance. The finite element software is used to study the effect of different interface structures and structural parameters on the stress wave propagation of the impact material composed of two layers of composite materials under the impact load generated by explosion. The results show that the impact load generated by explosion continues to propagate in the form of stress wave when reaching the composite material. When arriving at the interface, the stress wave will be reflected and transmitted due to different wave impedances of materials on both sides. Compared with the flat interface, the triangle interface has stronger attenuation effect on the stress wave. With the decrease of the angle of triangular interface, the peak value of stress wave reaching the second layer of composite decreases gradually. Under the same angle, the peak value of stress wave decreases first and then increases with the increase of interface thickness. This research is important in the field of ballistic and explosion protection.

Key words: composite material, stress wave propagation, interface geometry, blast-induced shock waves, oblique incidence

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