缝合工艺对复合材料面内力学性能影响实验研究

发布时间：2018-04-11 22:13

本文选题：八枚五飞经面缎 + 缝合复合材料　；参考：《玻璃钢/复合材料》2017年07期

【摘要】：研究了不同缝合密度和不同缝线粗细对碳纤维八枚五飞经面缎缝合复合材料面内力学性能的影响,并结合显微镜观察测量因缝线植入导致面内纤维弯曲,分析了面内纤维弯曲与力学性能的相关性。结果表明,缝合对层板面内性能有一定的影响,随着缝合密度变密和缝线变粗,面内力学性能整体呈下降趋势,且降低幅度均增大。显微镜分析表明,用纤维弯曲幅度和角度表征面内纤维弯曲,面内纤维是影响缝合层板力学性能的主要因素。在相同缝线下,随着缝合密度变密,面内纤维弯曲幅度几乎不变,而弯曲角度先增大后减小,力学性能整体呈降低趋势;在相同缝合密度下,随着缝线变粗,纤维弯曲幅度和角度均增大,强度降低趋势与面内纤维弯曲幅度和角度有很强的相关性,其二次函数相关系数在0.89~0.97之间。
[Abstract]:The effect of different suture density and stitch thickness on the in-plane mechanical properties of eight five-flying satin suture composites of carbon fiber was studied, and the in-plane fiber bending caused by suture implantation was measured by microscope.The relationship between in-plane fiber bending and mechanical properties was analyzed.The results show that suture has a certain effect on the in-plane properties of the laminates. With the thickening of the suture density and the thickening of the stitches, the in-plane mechanical properties of the layers decrease as a whole, and the reduction range increases.Microscope analysis showed that the bending amplitude and angle of the fiber were used to characterize the in-plane fiber bending, and the in-plane fiber was the main factor affecting the mechanical properties of the suture laminates.Under the same suture, with the density of suture becoming denser, the bending amplitude of the in-plane fiber is almost unchanged, while the bending angle first increases and then decreases, and the mechanical properties decrease as a whole, and at the same suture density, it becomes thicker with the stitching density.The bending amplitude and angle of the fiber increase, and the decreasing trend of the strength has a strong correlation with the bending amplitude and angle of the in-plane fiber, and the quadratic function correlation coefficient is between 0.89 and 0.97.
【作者单位】：天津工业大学纺织学院;中材科技股份有限公司;
【分类号】：TB33

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