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缝合密度对复合材料性能影响研究
乔志炜, 张方超, 胡方田
中材科技股份有限公司,南京 210012
摘要:
建立了不同缝合密度的碳纤维缎纹增强复合材料有限元模型,对其面内弹性模量进行有限元预报,并进行了实验验证。实验结果表明:随着缝合密度增加,复合材料的面内弹性模量降低,最大降低幅度约为44%,而对泊松比的影响很小。实验结果与有限元预报的规律一致。
关键词:  碳纤维缎纹织物  缝合密度  有限元  面内弹性模量
DOI:10.12044/j.issn.1007-2330.2019.03.004
分类号:
基金项目:
Effect of Stitching Density on Properties of Composites
QIAO Zhiwei, ZHANG Fangchao, HU Fangtian
SinomaScience&TechnologyCo.,Ltd.,Nanjing 210012
Abstract:
A three-dimensional finite element model with different stitching densities was established,which was based on the stitched carbon fabric satin reinforced composites,and the elastic modulus of the composites was predicted.The stitched composite specimens prepared by RTM process were used to test and verify the validity of the finite element method.The result shows that the in-plane elastic modulus of the composites decrease with the increase of the density,with the maximum magnitude of the reduction of about 44%,The Poisson"s ratio of the composites has no significant change.The experimental result is consistent with the regularity of finite element prediction.
Key words:  Carbon fabric satin  Stitching densities  Finite element  In-plane elastic modulus