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弹道防护用超高分子量聚乙烯纤维增强热塑性树脂基复合材料的拉伸力学行为

何业茂 焦亚男 周庆 贾楠 陈利 万喜莉

何业茂, 焦亚男, 周庆, 等. 弹道防护用超高分子量聚乙烯纤维增强热塑性树脂基复合材料的拉伸力学行为[J]. 复合材料学报, 2022, 40(0): 1-12
引用本文: 何业茂, 焦亚男, 周庆, 等. 弹道防护用超高分子量聚乙烯纤维增强热塑性树脂基复合材料的拉伸力学行为[J]. 复合材料学报, 2022, 40(0): 1-12
Yemao HE, Yanan JIAO, Qing ZHOU, Nan JIA, Li CHEN, Xili WAN. Tensile mechanical behavior of ultra-high molecular weight polyethylene reinforced thermoplastic resin matrix composites for ballistic application[J]. Acta Materiae Compositae Sinica.
Citation: Yemao HE, Yanan JIAO, Qing ZHOU, Nan JIA, Li CHEN, Xili WAN. Tensile mechanical behavior of ultra-high molecular weight polyethylene reinforced thermoplastic resin matrix composites for ballistic application[J]. Acta Materiae Compositae Sinica.

弹道防护用超高分子量聚乙烯纤维增强热塑性树脂基复合材料的拉伸力学行为

详细信息
    通讯作者:

    焦亚男,博士,研究员,博士生导师,研究方向为纺织复合材料结构与性能 E-mail:jiaoyn@tiangong.edu.cn

  • 中图分类号: TB332

Tensile mechanical behavior of ultra-high molecular weight polyethylene reinforced thermoplastic resin matrix composites for ballistic application

  • 摘要: 以弹道防护用超高分子量聚乙烯(ultra-high molecular weight polyethylene, UHMWPE)纤维增强热塑性树脂基复合材料作为研究对象,通过热压工艺制备单向正交结构的复合材料层压板。基于自主设计的拉伸试验装置,开展UHMWPE纤维增强热塑性树脂基复合材料在宏观尺度和准细观尺度上的面内拉伸试验,研究其面内拉伸力学性能及失效模式。研究结果显示:弹道防护用UHMWPE纤维增强热塑性树脂基复合材料在准细观尺度上的面内拉伸力学性能是其本征性能;随着偏轴角度的增加,拉伸断裂强度呈现指数型下降,这是因为失效模式由纤维的拉伸断裂破坏转变为纤维-树脂基体的界面破坏;此外,其在宏观尺度上的拉伸破坏强度比其在准细观尺度上的拉伸断裂强度降低了50.52%,这是由于宏观尺度上的面内拉伸力学响应是其面内拉伸变形和层间分层破坏的耦合结果,即层压板的叠层效应。

     

  • 图  1  试验路线示意图:(a)弹道防护用UHMWPE纤维增强热塑性树脂基复合材料的制备工艺;(b)力学试验试样的制备工艺;(c)拉伸试验装置及试样规格

    Figure  1.  Schematic diagram of experimental route: (a) Preparation process of UHMWPE fiber reinforced thermoplastic resin matrix composites for ballistic application; (b) Preparation process of mechanical test sample; (c) Tensile test device and sample specification

    图  2  准细观尺度试样的裁剪方案

    Figure  2.  Cutting scheme of quasi meso scale specimen

    图  3  UHMWPE纤维增强热塑性树脂基复合材料在准细观尺度上的面内拉伸载荷-位移曲线:(a)沿纤维轴向;(b)偏离纤维轴向

    Figure  3.  In-plane tensile load-displacement curves of UHMWPE fiber reinforced thermoplastic resin matrix composite on quasi meso scale: (a) Axial tensile; (b) Off-axis tensile

    图  4  UHMWPE纤维增强热塑性树脂基复合材料在准细观尺度上的面内拉伸响应过程:(a)沿纤维轴向拉伸;(b)偏离纤维轴向拉伸

    Figure  4.  In-plane tensile response process of UHMWPE fiber reinforced thermoplastic resin matrix composite on quasi meso scale: (a) Axial tensile; (b) Off-axis tensile

    图  5  UHMWPE纤维增强热塑性树脂基复合材料在准细观尺度上的面内拉伸力学性能:(a)拉伸断裂强度均值;(b)拉伸断裂位移均值;(c)拉伸断裂的比吸收能均值;(d)面内拉伸断裂强度的分布($ \alpha $表示弧度值)

    Figure  5.  Tensile mechanical properties of UHMWPE fiber reinforced thermoplastic resin matrix composite on quasi meso scale: (a) Average values of tensile strength at break; (b) Average values of tensile fracture displacement; (c) Average values of specific energy absorption of in-plane tensile fracture; (d) Distribution of in-pane tensile strength ($ \alpha $ denotes radian value)

    图  6  UHMWPE纤维增强热塑性树脂基复合材料样条中正交单元内单纤维的承载长度

    Figure  6.  Effective load length of single fiber in orthogonal element for UHMWPE fiber reinforced thermoplastic resin matrix composite samples

    图  7  UHMWPE纤维增强热塑性树脂基复合材料在宏观尺度上的面内拉伸力学性能:(a)面内拉伸载荷-位移曲线;(b)面内拉伸失效强度

    Figure  7.  In-plane tensile mechanical behavior of UHMWPE fiber reinforced thermoplastic resin matrix composite on macro scale: (a) Curves of in-plane tensile load - displacement; (b) In-plane tensile failure strength

    图  8  UHMWPE纤维增强热塑性树脂基复合材料在宏观尺度上的面内拉伸过程:(a)沿纤维轴向拉伸;(b)偏离纤维轴向拉伸

    Figure  8.  In-pane tensile process of UHMWPE fiber reinforced thermoplastic resin matrix composite on macro scale: (a) Axial tensile; (b) Off-axis tensile

    图  9  UHMWPE纤维增强热塑性树脂基复合材料在宏观尺度上的面内拉伸力学响应示意图:(a)沿纤维轴向拉伸;(b)偏离纤维轴向拉伸

    Figure  9.  Diagram of in-pane tensile mechanical response of UHMWPE fiber reinforced thermoplastic resin matrix composite on macro scale: (a) Axial tensile; (b) Off-axis tensile

    图  10  UHMWPE纤维增强热塑性树脂基复合材料在宏观尺度上面内拉伸断裂后的损伤形貌:(a)沿纤维轴向拉伸;(b)偏离纤维轴向拉伸

    Figure  10.  Damage morphology of UHMWPE fiber reinforced thermoplastic resin matrix composite after in-plane tensile fracture on macro scale: (a) Axial tensile; (b) Off-axis tensile

    图  11  UHMWPE纤维增强热塑性树脂基复合材料在准细观尺度上面内拉伸断裂后的损伤形貌:(a)沿纤维轴向拉伸;(b)偏离纤维轴向拉伸

    Figure  11.  Damage morphology of UHMWPE fiber reinforced thermoplastic resin matrix composite after in-plane tensile fracture on quasi meso scale: (a) Axial tensile; (b) Off-axis tensile

    表  1  超高分子量聚乙烯(UHMWPE)纤维增强热塑性树脂基复合材料的规格参数

    Table  1.   Specifications of ultra-high molecular weight polyethylene (UHMWPE) fiber reinforced thermoplastic resin matrix composite

    MaterialStructure of coiled material (2UD)Width of coiled material/cmAreal density of 2UD sheet/(g/m2)Fiber mass fraction/%
    UHMWPE fiber composite[0°/90°]160134±1087±3
    下载: 导出CSV

    表  2  UHMWPE纤维增强热塑性树脂基复合材料拉伸试样规格参数

    Table  2.   Specimen specifications of tensile test of UHMWPE fiber reinforced thermoplastic resin matrix composite

    Test scaleStructureSample shapeLoad direction/(°)Size of loading response regionNumber of effective
    test pieces
    Width/mmThickness/mm
    Quasi-meso[0°/90°]Rectangle0200.158615
    400.158621
    7.5400.163124
    15400.169125
    30400.158419
    45400.159021
    90200.158615
    Macro[0°/90°]57Dog-bone058.07225
    4557.84815
    9058.07226
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-12-13
  • 录用日期:  2022-02-11
  • 修回日期:  2022-01-22
  • 网络出版日期:  2022-03-03

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