高强聚乙烯层合板抗破片模拟弹侵彻性能数值分析

戴文喜; 谢伟; 胡鹏程; 程远胜; 闫小顺; 张攀

doi:10.19693/j.issn.1673-3185.02741

高强聚乙烯层合板抗破片模拟弹侵彻性能数值分析

doi: 10.19693/j.issn.1673-3185.02741

戴文喜^1, ,,
谢伟¹,
胡鹏程^2,,
程远胜^2,,
闫小顺¹,
张攀^2,

1.
中国舰船研究设计中心，湖北武汉 430064
2.
华中科技大学船舶与海洋工程学院，湖北武汉 430074

基金项目: 国家级重大基础研究项目；国家自然科学基金资助项目（52171307）

详细信息

作者简介:
戴文喜，男，1984年生，博士，高级工程师

谢伟，男，1969年生，博士，研究员

胡鹏程，男，1995年生，博士生。研究方向：船舶结构优化设计。E-mail：d202080619@hust.edu.cn

程远胜，男，1962年生，博士，教授，博士生导师。研究方向：船舶海洋结构优化设计。E-mail：yscheng@mail.hust.edu.cn

闫小顺，男，1990年生，硕士，高级工程师

张攀，男，1986年生，博士，副教授。研究方向：结构优化设计和抗爆抗冲击。E-mail：panzhang@hust.edu.cn

通信作者:
戴文喜

中图分类号: U663.2; TJ012,4
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出版历程
- 收稿日期: 2021-12-31
- 修回日期: 2022-03-25
- 网络出版日期: 2023-03-16
- 刊出日期: 2023-04-28

Ballistic performance of ultra-high molecular weight polyethylene laminates against fragment-simulating projectiles

1.
China Ship Development and Design Center, Wuhan 430064, China
2.
School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

高强聚乙烯层合板抗破片模拟弹侵彻性能数值分析由戴文喜，等创作，采用知识共享署名4.0国际许可协议进行许可。

摘要

摘要: 目的旨在探究破片侵彻作用下高强聚乙烯（UHMWPE）纤维增强层合板的毁伤响应过程、失效模式转变和能量吸收特性。方法采用有限元软件ANSYS/AUTODYN，建立UHMWPE层合板抗破片侵彻数值模型，分析UHMWPE层合板的失效模式转变和能量吸收特性。结果破片侵彻作用下UHMWPE层合板的动态响应过程大致可以分为剪切冲塞阶段和拉伸变形阶段。破片入射速度和靶板厚度会直接影响靶板的能量吸收特性。靶板厚度越大，剪切冲塞模式占比越大。在靶板厚度不变的情况下，随着破片侵彻速度的提高，剪切冲塞模式占比越来越大，最终趋于稳定。在破片弹道极限速度以上初始小范围内，靶板吸能随破片入射速度增大有所减小，随后破片速度继续增加会扩大靶板剪切冲塞破坏范围，导致靶板整体吸能量增加。结论基于所建立的数值模型能够较好地模拟破片侵彻作用下UHMWPE层合板的动态响应过程，可以为UHMWPE材料在弹道防护领域的应用提供参考。
- 高强聚乙烯层合板 /
- 抗弹性能 /
- 动态响应 /
- 破片侵彻 /
- 破片模拟弹
Abstract: Objectives This paper aims to study the dynamic perforation response process, failure mode transition and energy absorbtion characteristics of ultra-high molecular weight polyethylene （UHMWPE）laminates against fragment-simulating projectiles (FSPs). Methods FE software ANSYS/AUTODYN is employed to establish a numerical model for fragment penetration resistance of UHMWPE laminates, and analyze the failure mode transition and energy absorbtion characteristics of the target plates. Results The process can be roughly divided into two stages: the shear plugging stage and stretch deformation stage. The thicker the target plate, the greater the proportion of the shear plugging mode. When the thickness of the target plate is constant, with the increase in fragment penetration velocity, the proportion of the shear plugging mode becomes larger until it reaches a stable level. In the initial small range above the ballistic limit velocity, the energy absorbtion of the target plate is negatively related to the velocity of the projectiles. As the fragment velocity increases, the shear plugging range of the fiber fracturing enlarges, and the energy absorbtion of the targets increases with the velocity of the projectiles. Conclusions Based on the proposed numerical model, the dynamic response process of UHMWPE laminates against FSPs can be simulated accurately, which can provide references for the application of UHMWPE laminate plates in the ballistic protection field.
- UHMWPE laminates /
- ballistic performance /
- dynamic response /
- fragment penetration /
- fragment-simulating projectiles

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图 1 破片侵彻UHMWPE层合板几何模型

Figure 1. Geometrical model of the UHMWPE laminate plate pierced by fragment

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图 2 FSP侵彻UHMWPE层合板有限元模型

Figure 2. Finite element model of the UHMWPE laminate plate pierced by the FSP

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图 3 破片以888 m/s速度侵彻厚度为36 mm的 UHMWPE层合板时背面鼓包变形对比^[19]

Figure 3. Comparison of bulging deformation for the 36 mm thickness UHMWPE laminate plate pierced by the fragments at 888 m/s^[19]

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图 4 破片以365 m/s速度侵彻厚度为10 mm的UHMWPE层合板时背面鼓包变形对比

Figure 4. Comparison of bulging deformation between simulation and experimental results for the 10 mm thickness UHMWPE laminate plate pierced by the fragments at 365 m/s

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图 5 在直径为20 mm FSP侵彻作用下不同厚度UHMWPE层合板的剩余速度拟合曲线

Figure 5. Numerical residual velocity predictions for UHMWPE laminate plate with different thicknesses pierced by the FSP with a diameter of 20 mm

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图 6 破片加速度时程曲线和典型时刻靶板的毁伤容貌

Figure 6. Acceleration time histories of the fragments and corresponding failure profiles of the target plate at typical moments

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图 7 不同破片侵彻速度下3种厚度靶板的剪切冲塞厚度占总厚度的比值

Figure 7. Ratios of shear plugging thickness to total thickness for the target plate with three different thicknesses pierced by the fragments at various velocities

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图 8 不同破片侵彻速度下3种厚度靶板的单位质量吸能

Figure 8. Specific energy absorbtion of the target plate with three different thicknesses pierced by the fragments at various velocities

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表 1 4340H钢材料参数^[16-17]

Table 1. Material parameters of 4340H steel^[16-17]

参数	数值
密度${\rho }_{\rm{s}}$/(g·cm⁻³)	7.88
剪切模量G/GPa	77.8
静态屈服强度A/MPa	1 030
应变硬化系数B/MPa	477
应变硬化指数n	0.18
应变率硬化系数C	0.012
热软化指数m	1
材料熔化温度T_m/K	1 763
参考应变率${\dot{\varepsilon }}_{0}/$s⁻¹	1

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表 2 UHMWPE层合板材料参数^[17]

Table 2. Material parameters of a UHMWPE laminate plate^[17]

参数	数值	参数	数值
ρ/(g·cm⁻³)	0.98	Г	1.64
E₁₁/GPa	3.62	A₁₁	0.016
E₂₂/GPa	51.1	A₂₂	6×10⁻⁴
E₃₃/GPa	51.1	A₃₃	6×10⁻⁴
ν₁₂	0.013	S₁₁/GPa	1×10²⁰
ν₂₃	0	S₂₂/GPa	1.15
υ₃₁	0.5	S₃₃/GPa	1.15
G₁₂/GPa	2	G_11,f/(J·m⁻²)	790
G₂₃/GPa	0.192	G_22,f/(J·m⁻²)	30
G₃₁/GPa	2	G_33,f/(J·m⁻²)	30

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表 3 不同厚度UHMWPE层合板试验与仿真弹道极限速度结果对比

Table 3. Comparison of ballistic limit velocity results for the UHMWPE laminate plate with different thicknesses

靶板厚度/mm	FSP直径/mm	试验弹道极限速度^[19]/(m·s⁻¹)	仿真弹道极限速度/(m·s⁻¹)	相对误差/%
10	20	394	439	11.42
36	20	901	1 098	21.86
102	20	2 002	2 400	19.88

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