复合材料科学与工程Issue(12)：12-18,33,8.DOI:10.19936/j.cnki.2096-8000.20241228.002
聚乙烯-甲基丙烯酸缝合模式对复合材料抗冲击性能影响
Effect of EMAA stitching pattern on impact resistance of composites
摘要
Abstract
In aerospace,stitched composites are widely used due to their excellent impact resistance.Different stitch patterns affect the impact resistance of composites,and during the stitching process,the stitches also have an effect on the intra-laminar properties of composites.In this paper,a combination of multi-scale modeling and ex-perimental methods is used in order to investigate the effects of EMAA stitch spacing and stitch direction on the im-pact resistance and intra-laminar properties of composites.The results show that the validity of the multiscale model-ing of stitched composite panels is verified.Stitching led to a decrease in the in-face properties of the composite laminates around the stitches,but improved the impact resistance in the out-face direction.Comparison of different stitch spacings showed that the smaller the stitch spacing,the higher the improvement in the impact resistance of the composite.Comparison of the performance of the two different stitch orientations,45° and 0°,showed that the 45° stitch orientation was superior to the 0° stitch orientation in terms of both in-plane and out-of-plane performance.关键词
聚乙烯-甲基丙烯酸(EMAA)/复合材料/缝合/机械性能/低速冲击/多尺度建模Key words
EMAA/composites/stitching/mechanical property/low-speed impact/multi-scale modeling分类
通用工业技术引用本文复制引用
尹志豪,葛超坤,徐平,铁瑛,张臻臻,鞠光..聚乙烯-甲基丙烯酸缝合模式对复合材料抗冲击性能影响[J].复合材料科学与工程,2024,(12):12-18,33,8.基金项目
国家自然科学基金(52175153) （52175153）
