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复合材料双波纹面外褶皱缺陷细观力学分析方法

陆媚 胡祎乐 余音

陆媚, 胡祎乐, 余音. 复合材料双波纹面外褶皱缺陷细观力学分析方法[J]. 复合材料学报, 2022, 40(0): 1-14
引用本文: 陆媚, 胡祎乐, 余音. 复合材料双波纹面外褶皱缺陷细观力学分析方法[J]. 复合材料学报, 2022, 40(0): 1-14
Mei LU, Yile HU, Yin YU. Micro-mechanics analytical method for composite out-of-plane wrinkle with double fiber-waviness[J]. Acta Materiae Compositae Sinica.
Citation: Mei LU, Yile HU, Yin YU. Micro-mechanics analytical method for composite out-of-plane wrinkle with double fiber-waviness[J]. Acta Materiae Compositae Sinica.

复合材料双波纹面外褶皱缺陷细观力学分析方法

基金项目: 国家自然科学基金(11902197)
详细信息
    通讯作者:

    余音,博士,副教授,博士生导师,研究方向为复合材料结构分析与修理、结构动力学、智能结构和近场动力学方法 E-mail: yuyin@sjtu.edu.cn

  • 中图分类号: TB332

Micro-mechanics analytical method for composite out-of-plane wrinkle with double fiber-waviness

  • 摘要: 复合材料由于其高比模量、高比强度和疲劳寿命长等突出的优点被广泛应用于航空航天领域,但在制备过程中易产生褶皱缺陷,并对复合材料层合板的刚度、强度产生负面影响。本文主要研究含有单波纹和双波纹外部褶皱的复合材料力学性能。提出一种解析方法计算单波纹和双波纹褶皱细观力学模型的等效材料属性,通过与数值模型结果的对比与分析,发现含褶皱层合板的等效模量随波纹比绝对值的增大而减小。当波纹比绝对值相同时,含凹陷褶皱的层合板等效模量比含凸起褶皱的层合板等效模量低。不同厚度的含有褶皱的层合板等效模量曲线存在交汇点,交汇点两侧等效模量随厚度变化的趋势相反,且双波纹褶皱与单波纹褶皱的交汇点不同。

     

  • 图  1  内部褶皱

    Figure  1.  Internal wrinkle

    图  2  常见的外部褶皱

    Figure  2.  Common external wrinkle

    图  3  实际制备过程中出现的双波纹褶皱

    Figure  3.  Double-fiber-waviness wrinkle in the actual production process

    图  4  单波纹褶皱模型:(a)凸起褶皱;(b)凹陷褶皱

    Figure  4.  Single-fiber-waviness wrinkle model: (a) convex wrinkle; (b) Concave wrinkle

    $H$—Wrinkle height; $ L $—Wrinkle wavelength; $ t $—Laminate thickness; ${t_1}$—Thickness of wrinkle-free zone; $\varphi $—Out-of-plane orientation angle

    图  5  双波纹褶皱模型:(a)只含有凸起褶皱;(b)含有凸起褶皱和凹陷褶皱

    Figure  5.  Double-fiber-waviness wrinkle model: (a) Contains convex wrinkle; (b) Contains convex and concave wrinkle

    ${H_1}$—Wrinkle height (left);${L_1}$ —Wrinkle wavelength (left); ${H_2}$—Wrinkle height (right);${L_2}$ —Wrinkle wavelength (right)

    图  6  含褶皱层合板两步均质化过程

    Figure  6.  Two-step homogenization procedure for wrinkled composite laminates

    图  7  含褶皱复合材料有限元模型示意图

    Figure  7.  Schematic illustration of finite element model of wrinkled composites

    图  8  ${[0]_{{\text{5s}}}}$铺层AS4/8552单波纹褶皱层合板等效材料属性随$H/L$的变化情况

    Figure  8.  Change of the effective material properties versus $H/L$ of AS4/8552 single-fiber-waviness wrinkle laminate with ${[0]_{{\text{5s}}}}$layup

    图  9  不同铺层AS4/8552单波纹褶皱的等效模量$E_{xx}^{**}$$H/L$的变化趋势

    Figure  9.  Variation trend of $E_{xx}^{**}$ for AS4/8552 single-fiber-waviness wrinkle of different layers versus $H/L$

    图  10  不同厚度AS4/8552单波纹褶皱$E_{xx}^{**}$$H/L$的变化情况:(a) ${[0]_{{\text{5s}}}}$铺层;(b) $ {[0/45/90/ - 45/0]_{\text{s}}} $铺层

    Figure  10.  Variations of $E_{xx}^{**}$ versus$H/L$for AS4/8552 single-fiber-waviness wrinkle of different thicknesses: (a)${[0]_{{\text{5s}}}}$ layup; (b) $ {[0/45/90/ - 45/0]_{\text{s}}} $layup

    图  11  ${[0]_{{\text{5s}}}}$铺层AS4/8552双波纹褶皱层合板等效材料属性随${H_2}/{L_2}$的变化情况

    Figure  11.  Change of the effective material properties versus ${H_2}/{L_2}$of AS4/8552 double-fiber-waviness wrinkle laminate with ${[0]_{{\text{5s}}}}$layup

    图  12  不同铺层AS4/8552双波纹褶皱的$E_{xx}^{**}$${H_2}/{L_2}$的变化情况

    Figure  12.  Variations of $E_{xx}^{**}$ for AS4/8552 double-fiber-waviness wrinkle of different layers versus ${H_2}/{L_2}$

    图  13  不同厚度AS4/8552双波纹褶皱的$E_{xx}^{**}$${H_2}/{L_2}$的变化情况:(a) ${[0]_{{\text{5s}}}}$铺层,${H_1}/{L_1}{\text{ = 0}}{\text{.10}}$; (b) $ {[0/45/90/ - 45/0]_{\text{s}}} $铺层,${H_1}/{L_1}{\text{ = 0}}{\text{.10}}$;(c) ${[0]_{{\text{5s}}}}$铺层,${H_1}/{L_1}{{ = - }}0.10$

    Figure  13.  Variations of $E_{xx}^{**}$ versus ${H_2}/{L_2}$ for AS4/8552 double-fiber-waviness wrinkle of different thicknesses: (a) ${[0]_{{\text{5s}}}}$layup,${H_1}/{L_1} = 0.10$; (b) $ {[0/45/90/ - 45/0]_{\text{s}}} $layup,${H_1}/{L_1} = 0.10$; (c) ${[0]_{{\text{5s}}}}$layup,${H_1}/{L_1} = - 0.10$

    表  1  碳纤维/环氧树脂复合材料AS4/8552的力学性能

    Table  1.   Mechanical properties of AS4/8552 carbon fiber/epoxy composites

    $ \begin{gathered} {\text{ }}E_{11}^{} /{\text{GPa}} \end{gathered} $$ \begin{gathered} {\text{ }}E_{22}^{} {\text{/GPa}} \end{gathered} $$ \begin{gathered} {\text{ }}E_{33}^{} {\text{/GPa}} \end{gathered} $$ \begin{gathered} {\text{ }}G_{12}^{} {\text{/GPa}} \end{gathered} $$ \begin{gathered} {\text{ }}G_{13}^{} {\text{/GPa}} \end{gathered} $$ \begin{gathered} {\text{ }}G_{23}^{} {\text{/GPa}} \end{gathered} $${v_{12}}$${v_{13}}$${v_{23}}$
    1308.58.54.24.23.70.350.350.43
    下载: 导出CSV

    表  2  ${[0]_{{\text{5s}}}}$铺层AS4/8552单波纹褶皱模型通过解析和数值方法获得的等效材料属性

    Table  2.   Effective material properties of AS4/8552 single-fiber-waviness wrinkle model with ${[0]_{{\text{5s}}}}$ layup obtained by analytical and numerical methods

    Effective material properties$ H/L{{ = - 0}}{\text{.2 mm/}}3.0\;{\text{mm}} $$ H/L{\text{ = 0}}{\text{.2 mm/}}3.0\;{\text{mm}} $
    Analytical methodNumerical MethodError/%Analytical methodNumerical MethodError/%
    $E_{xx}^{**}{\text{/GPa}}$113.174112.9880.16128.069127.2320.66
    $ E_{yy}^{**}{\text{/GPa}} $7.9397.9370.0259.0719.072-0.011
    $ E_{zz}^{**}{\text{/GPa}} $9.1409.168-0.317.9928.012-0.25
    $ v_{yz}^{**} $0.3990.3980.250.4560.4560
    $ v_{zx}^{**} $0.02700.02469.760.02400.021810.09
    $ v_{xy}^{**} $0.3410.3264.600.3400.3264.29
    $ G_{yz}^{**}{\text{/GPa}} $3.9762.17882.553.4772.67829.84
    $ G_{zx}^{**}{\text{/GPa}} $4.7133.54033.144.1393.25627.12
    $ G_{xy}^{**}{\text{/GPa}} $3.9083.8900.464.4694.4500.43
    Note: **—After two steps homogenization.
    下载: 导出CSV

    表  3  $ {[0/45/90/ - 45/0]_{\text{s}}} $铺层AS4/8552单波纹褶皱模型通过解析和数值方法获得的等效材料属性

    Table  3.   Effective material properties of AS4/8552 single-fiber-waviness wrinkle model with ${[0/45/90/ - 45/0]_{\text{s}}}$ layup obtained by analytical and numerical methods

    Effective material properties$ H/L{\text{ = 0}}{\text{.2 mm/3}}{\text{.0 mm}} $
    Analytical methodNumerical MethodError
    $E_{xx}^{**}{\text{/GPa}}$65.17266.398-1.85
    $ E_{yy}^{**}{\text{/GPa}} $45.17045.616-0.98
    $ E_{zz}^{**}{\text{/GPa}} $9.3489.372-0.26
    $ v_{yz}^{**} $0.3870.3792.11
    $ v_{zx}^{**} $0.05150.04768.19
    $ v_{xy}^{**} $0.3100.3051.64
    $ G_{yz}^{**}{\text{/GPa}} $3.6683.04420.50
    $ G_{zx}^{**}{\text{/GPa}} $3.8382.98928.40
    $ G_{xy}^{**}{\text{/GPa}} $16.38716.750-2.17
    下载: 导出CSV

    表  4  ${[0]_{{\text{5s}}}}$铺层 AS4/8552双波纹褶皱模型通过解析和数值方法获得的等效材料属性

    Table  4.   Effective material properties of AS4/8552 double-fiber-waviness wrinkle model with ${[0]_{{\text{5s}}}}$layup obtained by analytical and numerical methods

    Effective material properties$ {H_1}/{L_1}{\text{ = }}0.2{\text{mm/}}3.0{\text{mm}} $
    $ {H_2}/{L_2}{\text{ = }}0.1\;{\text{mm/}}3.0\;{\text{mm}} $$ {H_2}/{L_2}{\text{ = - }}0.1\;{\text{mm/}}3.0\;{\text{mm}} $
    Analytical methodNumerical MethodsError/%Analytical methodNumerical MethodsError/%
    $ E_{xx}^{**}{\text{/GPa}} $129.570131.622-1.56125.396127.513-1.66
    $ E_{yy}^{**}{\text{/GPa}} $8.9248.926-0.0228.6498.6420.081
    $ E_{zz}^{**}{\text{/GPa}} $8.1138.125-0.158.4018.412-0.13
    $ v_{yz}^{**} $0.4500.45000.4350.4340.23
    $ v_{zx}^{**} $0.02340.02196.700.02420.02238.52
    $ v_{xy}^{**} $0.3430.350-2.000.3430.3381.48
    $ G_{yz}^{**}{\text{/GPa}} $3.5302.61235.143.6542.48746.92
    $ G_{zx}^{**}{\text{/GPa}} $4.1332.54062.724.2702.56366.60
    $ G_{xy}^{**}{\text{/GPa}} $4.4024.3890.304.2534.2390.14
    下载: 导出CSV

    表  5  $ {[0/45/90/ - 45/0]_{\text{s}}} $铺层AS4/8552双波纹褶皱模型通过解析和数值方法获得的等效材料属性

    Table  5.   Effective material properties of AS4/8552 double-fiber-waviness wrinkle model with$ {[0/45/90/ - 45/0]_{\text{s}}} $layup obtained by analytical and numerical methods

    Effective material properties$ {H_1}/{L_1}{\text{ = }}0.2{\text{mm/}}3.0{\text{mm}} $
    $ {H_2}/{L_2}{\text{ = }}0.1{\text{mm/2}}.0{\text{mm}} $$ {H_2}/{L_2}{\text{ = - }}0.1{\text{mm/2}}.0{\text{mm}} $
    Analytical methodNumerical MethodsError/%Analytical methodNumerical MethodsError/%
    $ E_{xx}^{**}{\text{/GPa}} $65.02964.5710.7162.78463.684-1.41
    $ E_{yy}^{**}{\text{/GPa}} $44.68144.6600.0544.15643.6301.21
    $ E_{zz}^{**}{\text{/GPa}} $9.4649.483-0.209.5729.752-1.85
    $ v_{yz}^{**} $0.3830.384-0.260.3780.3731.34
    $ v_{zx}^{**} $0.05140.05051.780.05380.04948.91
    $ v_{xy}^{**} $0.3120.311-0.320.3060.312-1.92
    $ G_{yz}^{**}{\text{/GPa}} $3.7102.97224.833.7632.37558.44
    $ G_{zx}^{**}{\text{/GPa}} $3.8722.41060.663.9422.87737.02
    $ G_{xy}^{**}{\text{/GPa}} $16.27516.1710.6415.82015.8670.30
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-01-18
  • 录用日期:  2022-03-06
  • 修回日期:  2022-02-26
  • 网络出版日期:  2022-03-30

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