开口尺寸和铺层比例对复材层合板压缩性能的影响

杨钧超 邓凡臣 柴亚南

杨钧超, 邓凡臣, 柴亚南. 开口尺寸和铺层比例对复材层合板压缩性能的影响[J]. 航空材料学报, 2022, 42(6): 88-96. doi: 10.11868/j.issn.1005-5053.2020.000002
引用本文: 杨钧超, 邓凡臣, 柴亚南. 开口尺寸和铺层比例对复材层合板压缩性能的影响[J]. 航空材料学报, 2022, 42(6): 88-96. doi: 10.11868/j.issn.1005-5053.2020.000002
YANG Junchao, DENG Fanchen, CHAI Yanan. Effects of opening size and layering ratio on compression properties of composite laminates[J]. Journal of Aeronautical Materials, 2022, 42(6): 88-96. doi: 10.11868/j.issn.1005-5053.2020.000002
Citation: YANG Junchao, DENG Fanchen, CHAI Yanan. Effects of opening size and layering ratio on compression properties of composite laminates[J]. Journal of Aeronautical Materials, 2022, 42(6): 88-96. doi: 10.11868/j.issn.1005-5053.2020.000002

开口尺寸和铺层比例对复材层合板压缩性能的影响

doi: 10.11868/j.issn.1005-5053.2020.000002
基金项目: 民机科研项目(MJ-2015-F-038)
详细信息
    通讯作者:

    杨钧超(1991—),男,硕士,工程师,主要从事复合材料结构强度分析及实验验证工作。联系地址:陕西省西安市雁塔区电子二路86号(710065),E-mail:JCyang@buaa.edu.cn

  • 中图分类号: V258

Effects of opening size and layering ratio on compression properties of composite laminates

  • 摘要: 为研究开口尺寸和铺层比例对复材层合板压缩性能的影响,对三种开口尺寸和铺层的复合材料层合板进行压缩实验,并采用电阻应变计测量开口区应变。结果表明:开口尺寸越大,0°层比例越低,孔边应变水平越高,而应变分布梯度更小,从而大开口复合材料层合板的压缩强度值越低。随后,基于Puck失效准则,建立大开口复合材料层合板的渐进损伤分析模型,对层合板压缩失效过程进行模拟。数值模拟得到的孔边应变分布以及压缩强度与实验结果吻合良好,建立的数值分析模型能够比较有效地预测含大开口的复合材料层合板的压缩性能。

     

  • 图  1  大开口复合材料层合板尺寸及应变片位置示意图

    Figure  1.  Dimensions of large-opening composite laminates and locations of strain gauges

    图  2  横向应力和剪应力组合作用下基体断裂面示意图

    Figure  2.  Fracture plane under combined transverse and shear stress

    图  3  大开口复合材料层合板数值模型

    Figure  3.  Numerical model of composite laminates with large openings

    图  4  不同开口尺寸、铺层的的层合板孔边应变-应力曲线 (a)铺层A,d=2 mm;(b)铺层A,d=10 mm;(c)铺层B,d=2 mm;(d)铺层B,d=10 mm;(e)铺层C,d=2 mm;(f)铺层C,d=10 mm

    Figure  4.  Strain-stress curves at the orifice edges of laminated plates with different opening sizes and layer  (a) layer A,d=2 mm;(b) layer A,d=10 mm;(c) layer B,d=2 mm;(d) layer B,d=10 mm;(e) layer C,d=2 mm;(f) layer C,d=10 mm

    图  5  层合板孔边应变随孔边距d的变化曲线($ \sigma = - 100\;{\text{MPa}} $) (a)铺层A,开口尺寸不同;(b)铺层不同,D=75 mm

    Figure  5.  Variation curve of hole edge strain of laminated plate with hole margin d ($ \sigma = - 100\;{\text{MPa}} $)  (a)layer A with different opening sizes;(b)different layer,D=75 mm

    图  6  不同开口尺寸和铺层的复合材料层合板破坏形貌 (a)铺层A,D=25.4 mm;(b)铺层A,D=50 mm;(c)铺层A,D=75 mm;(d)铺层B,D=25.4 mm;(e)铺层B,D=50 mm;(f)铺层B,D=75 mm;(g)铺层C,D=25.4 mm;(h)铺层C,D=50 mm;(i)铺层C,D=75 mm;

    Figure  6.  Failure morphology of composite laminates with different opening sizes and lamination  (a) layer A,D=25.4 mm;(b) layer A,D=50 mm;(c) layer A,D=75 mm;(d) layer B,D=25.4 mm;(e) layer B,D=50 mm;(f) layer B,D=75 mm;(g) layer C,D=25.4 mm;(h) layer C,D=50 mm;(i) layer C,D=75 mm;

    图  7  大开口复合材料层合板各单层损伤状态(铺层A) (a)D=25.4 mm,纤维损伤;(b)D=25.4 mm,纤维间损伤;(c)D=75 mm,纤维损伤;(d)D=75 mm,纤维间损伤

    Figure  7.  Damage status of each single layer of composite laminates with large openings (layer A)  (a) D=25.4 mm,FF;(b) D=25.4 mm,IFF;(c) D=75 mm,FF;(d) D=75 mm,IFF

    表  1  M21C/IMA性能参数

    Table  1.   Properties parameters of M21C/IMA

    E1/MPaE2/MPaG12/MPaν12XT/MPaXC/MPaYT/MPa
    166000811041400.3192900114070.5
    YC/MPaSL/MPaEF/MPaν12Fβ/MPa−3G2C/(N·mm−1)G12C/(N·mm−1)
    2801722250000.21.4e−80.83.5
    下载: 导出CSV

    表  2  大开口复合材料层合板试件尺寸及数量

    Table  2.   Size and number of experimental pieces of large-open composite laminates

    Layerh/mmL/mmW/mmD/mmL1/mmNumber
    A/B/C7.6415010025.4103
    31015050503
    34018075503
    下载: 导出CSV

    表  3  大开口层合板压缩强度预测值与实验结果对比

    Table  3.   Comparison of predicted compression strength of large open laminates with experimental results

    LayerD/mmTest strength/MPaCV/%Predicted strength/MPaError/%
    A25.42742.28237−13.5
    502031.422040.493
    751745.78173−0.575
    B25.42402.45212−11.7
    502011.02184−8.46
    751633.301661.84
    C25.42271.18202−11.0
    501731.56171−1.16
    751494.22145−2.69
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-01-09
  • 录用日期:  2022-09-06
  • 修回日期:  2022-10-15
  • 刊出日期:  2022-12-02

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