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Kevlar纤维UD片材复合材料的防弹性能

闫卫星 郭艳文 徐柠浩 黄晓梅 曹海建

闫卫星, 郭艳文, 徐柠浩, 等. Kevlar纤维UD片材复合材料的防弹性能[J]. 复合材料学报, 2024, 42(0): 1-11.
引用本文: 闫卫星, 郭艳文, 徐柠浩, 等. Kevlar纤维UD片材复合材料的防弹性能[J]. 复合材料学报, 2024, 42(0): 1-11.
YAN Weixing, GUO Yanwen, XU Ninghao, et al. Ballistic performance of Kevlar fiber UD sheets composite materials[J]. Acta Materiae Compositae Sinica.
Citation: YAN Weixing, GUO Yanwen, XU Ninghao, et al. Ballistic performance of Kevlar fiber UD sheets composite materials[J]. Acta Materiae Compositae Sinica.

Kevlar纤维UD片材复合材料的防弹性能

基金项目: 国家重点研发计划(2018YFC0810300);江苏省研究生科研与实践创新计划项目(KYCX23_3406)。
详细信息
    通讯作者:

    曹海建,教授,主要从事防弹防机械伤害复合材料的研发。 E-mail:caohaijian@ntu.edu.cn

  • 中图分类号: TB332

Ballistic performance of Kevlar fiber UD sheets composite materials

Funds: National Key Research and Development Program of China (2018YFC0810300); Graduate Research and Practice Innovation Program of Jiangsu Province (KYCX23_3406)
  • 摘要: 为探究Kevlar纤维单向(UD)片材复合材料防弹性能,以水性丙烯酸树脂/水性聚氨酯为基体,采用湿法缠绕技术与热压工艺制备了Kevlar纤维UD片材复合材料。探究共混树脂配比,树脂含量,热压工艺等因素对Kevlar纤维UD片材复合材料防弹性能的影响规律,揭示材料的防弹机制,以及对靶板结构进行优化。结果表明:随着水性丙烯酸树脂在共混树脂中比重的增加,Kevlar纤维UD片材复合材料防弹性能呈先增大后减小的趋势,当水性聚氨酯与水性丙烯酸树脂的比例为1∶2时,防弹性能较好。随着树脂含量的增加,Kevlar纤维UD片材复合材料防弹性能呈先增大后减小的趋势,当树脂含量为19wt%时,防弹性能较好。Kevlar纤维UD片材复合材料防弹性能随着热压压力、热压温度、热压时间的增大呈先增大后减小的趋势。Kevlar纤维UD片材复合材料的防弹机制主要分成三个阶段,第一阶段主要以纤维剪切破坏的方式吸收能量,第二阶段主要以纤维拉伸断裂的方式吸收能量为主,第三阶段主要以纤维拉伸变形的方式吸收能量。8UD/4UD/8UD结构的Kevlar纤维UD片材复合材料防弹性能较好。

     

  • 图  1  Kevlar纤维单向(UD)片材制备流程

    Figure  1.  Preparation process of Kevlar fiber unidirectional (UD) sheets

    图  2  热压示意图

    Figure  2.  Schematic diagram of hot pressing process

    图  3  靶板结构示意图

    Figure  3.  Schematic diagram of target plate structure

    图  4  弹道侵彻实验装置

    Figure  4.  Experimental setup for ballistic penetration

    图  5  不同树脂比例的靶板背凸深度(BFS)和贯穿层所占比例

    Figure  5.  Back projection depth (BFS) of target plates and proportion of penetration layer in target plates with different resin rations

    图  6  不同树脂比例的靶板破坏形貌

    Figure  6.  Morphology of Impact damage on target plate with different resin ratios

    图  7  不同树脂含量的靶板背凸深度和贯穿层所占比例

    Figure  7.  BFS of target plates and proportion of penetration layer in target plates with different resin content

    图  8  不同树脂含量的靶板破坏形貌

    Figure  8.  Morphology of impact damage on target pate with different resin content

    图  10  4#靶板破坏形貌

    Figure  10.  The failure morphology of each layer of the 4# target plate

    图  9  不同热压工艺的靶板BFS和贯穿层所占比例

    Figure  9.  BFS of target plates and proportion of penetration layer in target plates with different hot pressing processes

    图  11  4#靶板的微观破坏形貌

    Figure  11.  The microscopic damage morphology of 4# target plate

    图  12  4#靶板的各层靶片变形面积

    Figure  12.  The deformation area of each layer of the 4# target plate

    图  13  靶板结构示意图

    Figure  13.  The deformation area of each layer of the 4# target plate

    图  14  不同结构靶板的背凸深度和贯穿层所占比例

    Figure  14.  BFS of target plates and proportion of penetration layer in target plates with different structures

    表  1  弹道侵彻试验标准参数

    Table  1.   Ballistic penetration test standard parameters

    Bullet specifications Impact velocity /(m·s−1) Back face deformation depth /mm Shooting distance /m Impact angle /(°)
    7.62×17 445±10 <25 5 0
    下载: 导出CSV

    表  2  不同树脂比例靶板打靶结果

    Table  2.   Shooting results of target plates with different resin ratios

    Serial number Resin (Polyurethane:
    Acrylic acid)
    Number of layers Resin content /wt% Single-layer areal
    density/(g·m−2)
    Target plate areal
    density /(kg·m−2)
    Penetration
    1 2∶1 45 17 187 8.40 NO
    2 1∶1 44 18 190 8.36 NO
    3 2∶3 45 17 188 8.46 NO
    4 1∶2 44 19 192 8.42 NO
    5 2∶5 44 17 189 8.30 NO
    6 Acrylic acid 44 18 190 8.36 YES
    下载: 导出CSV

    表  3  不同树脂含量靶板打靶结果

    Table  3.   Shooting results of target plates with different resin content

    Serial number Resin (Polyurethane:
    Acrylic acid)
    Number of layers Resin content /wt% Single-layer areal
    density y/(g·m−2)
    Target plate areal
    density /(kg·m−2)
    Penetration
    7 1∶2 50 10 168 8.32 NO
    4 1∶2 44 19 192 8.42 NO
    8 1∶2 40 26 208 8.30 NO
    9 1∶2 37 32 227 8.37 NO
    下载: 导出CSV

    表  4  不同热压工艺靶板打靶结果

    Table  4.   Shooting results of target plates with different hot pressing processes

    Serial number Hot pressing process Number of layers Resin content /wt% Target plate areal density /(kg·m−2) Penetration
    10 7 MPa, 130℃, 20 min 42 21 8.34 NO
    4 10 MPa, 130℃, 20 min 44 19 8.40 NO
    11 14 MPa, 130℃, 20 min 42 21 8.30 NO
    12 17 MPa, 130℃, 20 min 42 22 8.42 NO
    13 10 MPa, 100℃, 20 min 42 22 8.39 NO
    14 10 MPa, 160℃, 20 min 44 18 8.37 NO
    15 10 MPa, 190℃, 20 min 43 20 8.43 YES
    16 10 MPa, 130℃, 10 min 43 20 8.33 NO
    17 10 MPa, 130℃, 15 min 43 20 8.37 NO
    18 10 MPa, 130℃, 25 min 44 17 8.30 NO
    下载: 导出CSV

    表  5  不同结构 Kevlar纤维UD片材复合材料打靶结果

    Table  5.   Target shooting results of Kevlar fiber UD sheet composites with different structures

    Serial number Structure Number of layers Mass ratio Resin content /wt% Target plate areal density /(kg·m−2) Penetration
    20 4UD 44 - 18 8.37 NO
    21 8UD/4UD 34 1∶1.2 18 8.37 NO
    22 4UD/8UD 34 1.2∶1 18 8.38 NO
    23 8UD/4UD/8UD 29 1∶1.1∶1 19 8.43 NO
    下载: 导出CSV
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  • 收稿日期:  2024-01-24
  • 修回日期:  2024-03-13
  • 录用日期:  2024-03-22
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