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碳/芳纶混杂纤维增强波纹夹芯结构低速冲击性能

习涛 倪爱清 张笑梅 李想 王继辉

习涛, 倪爱清, 张笑梅, 等. 碳/芳纶混杂纤维增强波纹夹芯结构低速冲击性能[J]. 复合材料学报, 2023, 40(2): 1004-1014. doi: 10.13801/j.cnki.fhclxb.20220317.001
引用本文: 习涛, 倪爱清, 张笑梅, 等. 碳/芳纶混杂纤维增强波纹夹芯结构低速冲击性能[J]. 复合材料学报, 2023, 40(2): 1004-1014. doi: 10.13801/j.cnki.fhclxb.20220317.001
XI Tao, NI Aiqing, ZHANG Xiaomei, et al. Low-velocity impact properties of carbon/aramid hybrid fiber reinforced corrugated sandwich structure[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 1004-1014. doi: 10.13801/j.cnki.fhclxb.20220317.001
Citation: XI Tao, NI Aiqing, ZHANG Xiaomei, et al. Low-velocity impact properties of carbon/aramid hybrid fiber reinforced corrugated sandwich structure[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 1004-1014. doi: 10.13801/j.cnki.fhclxb.20220317.001

碳/芳纶混杂纤维增强波纹夹芯结构低速冲击性能

doi: 10.13801/j.cnki.fhclxb.20220317.001
详细信息
    通讯作者:

    王继辉,博士,教授,博士生导师,研究方向为聚合物基复合材料 E-mail: jhwang@whut.edu.cn

  • 中图分类号: TB332

Low-velocity impact properties of carbon/aramid hybrid fiber reinforced corrugated sandwich structure

  • 摘要: 采用碳纤维和芳纶纤维增强复合材料对波纹夹芯结构的面板进行层间混杂铺层设计,通过真空辅助树脂灌注(VARI)成型工艺制备混杂波纹夹芯结构。在60 J、80 J和100 J三种不同冲击能量下,研究了面板混杂铺层方式对波纹夹芯结构低速冲击性能及冲击后压缩强度的影响,并利用超声C扫和工业CT断层成像两种无损检测技术对波纹夹芯结构的冲击损伤机制进行了分析。结果表明:冲击能量较低时,波纹夹芯结构的吸收能量基本不受面板的混杂铺层方式影响,而凹坑深度随表层碳纤维层数增加而减少。冲击能量较高时,面板为分层式混杂(碳/芳纶纤维单层交替铺层)的波纹夹芯结构的抗冲击性能最好,纤维断裂损伤和层间分层主要发生在试样表层,但损伤面积较大;面板为夹层式混杂(以碳纤维为蒙皮、芳纶纤维为芯材)的波纹夹芯结构具有较高的吸收能量,整个上面板的纤维都发生了断裂破坏,但损伤面积较小。碳/芳纶混杂波纹夹芯结构的面板采用分层式和夹层式的混杂铺层设计时,具有较高的冲击后压缩强度。

     

  • 图  1  波纹夹芯结构代表性体积单元(RVE)截面图

    PVC—Polyvinyl chloride; hc, a and θ—Thickness of the foam core, the span length and the corrugation angle, respectively

    Figure  1.  Representative volume element (RVE) section of the corrugated sandwich structure

    图  2  真空辅助树脂灌注(VARI)成型工艺示意图

    Figure  2.  Schematic diagram of vacuum assisted resin infusion (VARI) process

    图  3  冲击试样

    Figure  3.  Impact specimens

    图  4  冲击试验装置

    Figure  4.  Impact testing apparatus

    图  5  冲击后压缩试验试样夹持方式

    Figure  5.  Clamping method of specimens in compression after impact test

    图  6  不同冲击能量下波纹夹芯结构的载荷-时间曲线

    Figure  6.  Load-time curves of corrugated sandwich structures at different impact energies

    图  7  不同冲击能量下波纹夹芯结构的载荷-位移曲线

    Figure  7.  Load-displacement curves of corrugated sandwich structures at different impact energies

    Emd—Energy absorbed at peak load

    图  8  不同冲击能量下波纹夹芯结构的吸收能量-时间曲线

    Figure  8.  Absorbed energy-time curves of corrugated sandwich structures at different impact energies

    图  9  波纹夹芯结构典型冲击损伤形貌:((a), (c)) 正面图;((b), (d)) 截面图

    Figure  9.  Typical impact damage morphologies of corrugated sandwich structures: ((a), (c)) Front view; ((b), (d)) Sectional view

    图  10  不同冲击能量下波纹夹芯结构超声C扫图像

    Figure  10.  Ultrasonic C-scan images of corrugated sandwich structures at different impact energies

    图  11  100 J冲击能量下波纹夹芯结构的CT无损检测图像

    Figure  11.  CT non-destructive testing images of corrugated sandwich plates at 100 J impact energy

    图  12  不同冲击能量下波纹夹芯结构的剩余压缩强度比

    Figure  12.  Compression after impact strength ratio of corrugated sandwich plates at different impact energies

    表  1  波纹夹芯结构面板铺层方案

    Table  1.   Panel stacking schemes of corrugated sandwich structures

    AlternativeHybrid structureStacking sequenceThickness/mm
    SCNon-hybrid[C6/core/C6]35.81
    SA[A8/core/A8]35.96
    HI1Inter-layer hybrid[CACACACA/core/ACACACAC]36.32
    HI2[C2A2C2A2/core/A2C2A2C2]36.34
    HI4Overlay hybrid[C4A4/core/A4C4]36.38
    HSSandwich-like hybrid[C2A4C2/core/C2A4C2]36.36
    Notes: C, A and core—Carbon fabric, aramid fabric and corrugated core, respectively; SC—Pure carbon fiber structure; SA—Pure aramid fiber structure; HI1—Single layer alternately lay-up structure; H12—Every two layers alternately lay-up stucture; H14—Every four layers alternately lay-up stucture; HS—Sandwich structure.
    下载: 导出CSV

    表  2  不同冲击能量下波纹夹芯结构凹坑深度和损伤面积

    Table  2.   Dent depth and damage area of corrugated sandwich structures at different impact energies

    Impact energy/JDent depth/mmDamage area/mm2
    SCHI1HI2HI4HSSASCHI1HI2HI4HSSA
    600.690.740.620.490.661.071026.41264.61370.51541.01459.1
    802.791.030.890.800.821.38 933.01413.61465.61602.71863.0
    1007.101.170.921.372.771.55 924.62141.91805.61629.01656.4
    下载: 导出CSV

    表  3  波纹夹芯结构在不同冲击能量下的压缩强度

    Table  3.   Compress strength of corrugated sandwich plates at different impact energies

    Impact energy/JCompress strength/MPa
    SCHI1HI2HI4HSSA
    039.5426.1323.0027.0422.8111.60
    6021.1520.8516.4118.2818.23 9.73
    8017.1217.3615.5115.6516.10 9.10
    10014.0316.5113.3812.2115.34 8.47
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-01-19
  • 修回日期:  2022-02-15
  • 录用日期:  2022-03-03
  • 网络出版日期:  2022-03-18
  • 刊出日期:  2023-02-15

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