三维中空夹芯复合材料拉伸性能的有限元分析
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江南大学纺织服装学院

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TB332

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Finite Element Analysis of Three鄄Dimensional HollowSandwich Composites on Tensile Properties
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    摘要:

    利用有限元软件Workbench,建立了三维中空夹芯复合材料结构模型,进行拉伸性能研究。利用
    该模型,探讨了材料在1 mm 拉伸位移载荷作用下纤维、树脂和复合材料的应力、应变分布。结果表明:三维中
    空夹芯复合材料在拉伸载荷作用下,“X冶形芯材交叉处应力最大,最容易发生拉伸破坏;上下面板应力最小,最
    不容易发生拉伸破坏;复合材料在承受拉伸载荷作用时,增强体纤维起主要承载作用,基体树脂起次要作用;当
    拉伸位移载荷达到1 mm 时,材料的破坏模式主要为树脂破裂。

    Abstract:

    A new structural model was built to study tensile properties of three鄄dimensional hollow sandwich
    composites (3D composites) by using the finite element software Workbench. The distribution of stress & strain on the
    fibers, resin and the 3D composites was discussed under tensile loads of 1 mm displacement by using the model. The
    results show that the maximum value of stress occured between the overlap of X鄄shaped piles, where the 3D compos鄄
    ites damaged easily. The minimum value of stress occured on the up and down face鄄sheet, where the 3D composites
    damaged difficulty. The main loads were supported by reinforced fibers and the minor loads were supported by matrix
    resin. The main failure mode of the 3D composites are resin fracture when the 3D composites suffered tensile displace鄄
    ment loads at 1 mm.

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曹海建.三维中空夹芯复合材料拉伸性能的有限元分析[J].宇航材料工艺,2015,45(2).

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  • 在线发布日期: 2016-11-28
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