超高分子量聚乙烯纤维平纹织物-单向布混合堆叠板的防弹机制

袁子舜; 陆振乾; 许玥; 徐望

doi:10.13801/j.cnki.fhclxb.20210625.001

超高分子量聚乙烯纤维平纹织物-单向布混合堆叠板的防弹机制

doi: 10.13801/j.cnki.fhclxb.20210625.001

袁子舜^1,,
陆振乾^2, ,,
许玥^3,,
徐望^4,

1.
广东工业大学　能源与材料学院，广州 510006
2.
盐城工学院　纺织服装学院，盐城 224051
3.
北京中科老专家技术中心，北京 100190
4.
北卡罗来纳州立大学　威尔逊纺织学院，罗利 27606

基金项目: 国家自然科学基金(51478408)

详细信息

通讯作者:
陆振乾，博士，副教授，硕士生导师，研究方向为纺织复合材料　E-mail：luzhenqian2003@126.com

中图分类号: TB332
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出版历程
- 收稿日期: 2021-05-12
- 修回日期: 2021-05-30
- 录用日期: 2021-06-09
- 网络出版日期: 2021-06-25
- 刊出日期: 2022-06-01

Ballistic mechanism of the hybrid panels with UHMWPE woven fabrics and UD laminates

YUAN Zishun^1
,,
LU Zhenqian^{2
, ,},
XU Yue^3
,,
XU Wang^4
,

1.
School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
2.
School of Textile and Garment, Yancheng Institute of Technology, Yancheng 224051, China
3.
Chinese Academy of Sciences Senior Expert Technology Center, Beijing 100190, China
4.
Wilson College of Textiles, North Carolina state University, Raleigh 27606, United States of America

摘要

摘要: 柔性防弹衣具有隐蔽性好、穿着舒适的优点，而采用平纹与单向(UD)布杂化结构具有更好的防护效果。本文采用三层超高分子量聚乙烯(UHMWPE)纤维平纹织物(A)和两层Dyneema^® SB51 UD布(B)组成AAABB和BBAAA两种混合靶板，通过弹道实验比较两种排列方式的防弹性能差异。结果表明，将平纹织物在前UD布在后能大幅提升整块板的防弹性能，能量吸收比后者高约20%。进一步采用有限元模拟来阐明其防弹机制，模拟结果表明将平纹织物放在面层不易被切断，使得平纹织物层发生更大的形变，也使后面的UD布发生大面积形变，吸收大量能量。而UD布放在前面层易产生的切力破坏，失去对后面层的作用。而平纹织物在后层容易发生滑移，且形变纵深过大，不利于防弹保护。该研究结果阐明了平纹织物和UD布不同顺序堆叠时的防弹机制，为进一步优化设计该类柔性防弹衣提供了坚实的理论基础。
- 超高分子量聚乙烯纤维 /
- 平纹织物 /
- 单向(UD)布 /
- 混合堆叠板 /
- 有限元模拟分析 /
- 弹道冲击
Abstract: Soft body amour has the advantages of good concealment and high comfortability. Recent studies demonstrate that soft body amours made up of layers of woven fabrics and unidirectional (UD) laminates show better ballistic performance. However, the mechanism behind has not been clarified. This work utilized three layers of woven fabrics (A) made by ultrahigh molecular weight polyethylene (UHMWPE) yarns and two layers of Dyneema^® SB51 UD laminates (B) to compose two types of hybrid panels, viz. AAABB and BBAAA. Ballistic tests were carried out to evaluate their performance. The results show that the first type panel absorbs around 20% more energy than the second counterpart does. The finite element modelling is used to clarify the ballistic mechanism. The results illustrate that when the woven fabrics in front, they are not easier to be failed by shear, which results in more deformation of the fabric and therefore more deformation of the UD laminates behind, thereby giving rise to higher energy absorption. In contrast, when the UD laminates in front, they are easier to be damaged by the shear stress, failing to act on the followed layers. Moreover, when the woven fabrics at the rear, they tend to slip and meanwhile bring about more deformation in depth, which is detrimental to the protection. This study sheds light on the ballistic mechanism of hybrid panels with laying woven fabrics and UD laminates in different sequences. Such results, theoretically, pave the way for the design of the hybrid soft body amours.
- UHMWPE fiber /
- woven fabric /
- unidirectional (UD) laminate /
- hybrid panel /
- finite element analysis /
- ballistic impact

HTML全文

图 1 两组超高分子量聚乙烯(UHMWPE)纤维平纹织物-单向(UD)布杂化结构示意图

Figure 1. Schematic diagram of two groups of hybrid structures with ultrahigh molecular weight polyethylene (UHMWPE) yarns woven fabrics and unidirectional (UD) laminates

A—Woven fabrics; B—UD laminates

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图 2 纱线模型尺寸、方向定义与网格划分

Figure 2. Size of yarn model, definition of yarn directions, and mesh development

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图 3 平纹织物模型尺寸、边缘条件设置和主区域和副区域定义

Figure 3. Size of plain woven fabric model, setting of boundary condition, and definition of primary and secondary areas

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图 4 UD布模型尺寸和边缘条件设置

Figure 4. Dimension of UD laminate model and setting of boundary condition

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图 5 子弹模型尺寸

Figure 5. Dimension of the projectile

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图 6 单层UHMWPE纤维平纹织物能量吸收和第一根纱线断裂的实验和模拟数据对比

Figure 6. Energy absorption and time of first failed yarn of single UHMWPE fiber woven fabric from experiments and modelling

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图 7 单层Dyneema^@ SB51 UD布能量吸收和穿透时间的实验和模拟数据对比

Figure 7. Energy absorption and penetration time of single Dyneema^@ SB51 UD fabric from experiments and modelling

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图 8 AAABB和BBAAA型混合板的能量吸收

Figure 8. Energy absorption of AAABB and BBAAA hybrid panels

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图 9 两组UHMWPE纤维平纹织物-UD布混合板每层的内能吸收

Figure 9. Energy absorption of internal energy of each layer in the two hybrid panels with UHMWPE yarn woven fabrics and UD laminates

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图 10 两组UHMWPE纤维平纹织物-UD布混合板前两层主区域和副区域的内能吸收

Figure 10. Internal energy of primary area and secondary area of the first two layers in the two hybrid panels with UHMWPE yarn woven fabrics and UD laminates

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图 11 在1×10⁻⁶ s时AAABB中第一层与BBAAA中第一层所受拉应力分散图

Figure 11. Contours of tensile stress distributions on the first layer of AAABB and BBAAA at 1×10⁻⁶ s

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图 12 两组UHMWPE纤维平纹织物-UD布混合板后两层主区域和副区域的内能吸收

Figure 12. Internal energy of primary and secondary areas of the first two layers in the two hybrid panels with UHMWPE yarn woven fabrics and UD laminates

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图 13 两组UHMWPE纤维平纹织物-UD布混合板中每层平纹织物层的内能吸收

Figure 13. Internal energy of each layer in the two hybrid panels with UHMWPE yarn woven fabrics and UD laminates

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图 14 两组UHMWPE纤维平纹织物-UD布混合板中的平纹织物Mises应力分散图

Figure 14. Contours of Mises stress distributions of woven fabrics in the two hybrid panels with UHMWPE yarn woven fabrics and UD laminates

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表 1 UHMWPE纱线模型弹性性质

Table 1. Elastic properties of UHMWPE yarn in modelling

E₁/MPa	E₂/MPa	E₃/MPa	ν₁₂	ν₁₃	ν₂₃	G₁₂/MPa	G₁₃/MPa	G₂₃/MPa
88000	1210	1210	0.2	0.2	0.4	370	370	1500
Notes: E₁, E₂, E₃—Young’s modulus in the 1, 2, 3-directions of the UHMWPE yarn model, respectively; ν₁₂—Poisson’s ratio that characterizes the transverse strain in the 2-direction, when the yarn model is stressed in the 1-direction; ν₁₃—Poisson’s ratio that characterizes the transverse strain in the 3-direction, when the yarn model is stressed in the 1-direction; ν₂₃—Poisson’s ratio that characterizes the transverse strain in the 3-direction, when the yarn model is stressed in the 2-direction; G₁₂, G₁₃, G₂₃—Shear modulus in 12, 13, 23-directions of the yarn model.

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表 2 UD布模型弹性性质

Table 2. Elastic properties of a UD ply

E₁/MPa	E₂/MPa	E₃/MPa	ν₁₂	ν₁₃	ν₂₃	G₁₂/MPa	G₁₃/MPa	G₂₃/MPa
110000	3600	3600	0.07	0.07	0.07	420	420	420

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表 3 粘结层的弹性性质

Table 3. Elastic properties of the adhesive ply

E/E_nn/MPa	G₁/E_ss/MPa	G₂/E_tt/MPa
850	850	850
Notes: E/E_nn—Nominal traction in the normal direction; G₁/E_ss and G₂/E_tt—Nominal tractions in the two local shear directions.

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