南通大学学报（自然科学版）2024，Vol.23Issue(2)：74-81,8.DOI:10.12194/j.ntu.20240325001
三维角联锁衬经机织复合材料的纱线形态及力学性能分析
Yarn morphology and mechanical performance analysis of 3D angle-interlock woven composites with warp insertions
摘要
Abstract
In 3D angle-interlock woven structures,warp and weft yarns are indispensable components,and their mor-phology significantly affects the mechanical properties of composite materials.Current research on three-dimensional angle-interlock woven composites primarily describes the internal yarn patterns as straight weft yarns and curved warp yarns.This study investigates changes in yarn morphology in 3D angle-interlock woven composite materials by adjust-ing the arrangement and density of warp yarns and warp insertions.Five different structural specimens were designed,and quasi-static bending and compression tests were conducted to analyze their mechanical properties.The results in-dicate that changes in the arrangement density of warp yarns and warp insertions lead to transformations in the mor-phology of warp and weft yarns.By decreasing the density of warp yarns and warp insertions and increasing the spac-ing between adjacent warp yarns,the torque effect of warp yarns is enhanced,causing weft yarns to transform from a straight state to a bent state,and warp yarns to transform from a bent state to a straight state.The bending and com-pression performance of the specimens is significantly affected by the bending wave height of the yarns.Specimens with greater bending wave height exhibit higher bending strength and lower bending modulus.Specimens with a lower degree of yarn bending in the loading direction exhibit higher compression strength and compression modulus.关键词
三维角联锁衬经织物/复合材料/纱线形态/力学性能Key words
3D angle-interlock woven with warp insertions/composite materials/yarn morphology/mechanical per-formance分类
通用工业技术引用本文复制引用
徐瑞,王颖杰,张伟,王海楼..三维角联锁衬经机织复合材料的纱线形态及力学性能分析[J].南通大学学报（自然科学版）,2024,23(2):74-81,8.基金项目
国家自然科学基金青年科学基金项目(11802144) （11802144）
南通市科技计划项目(JC12022039) （JC12022039）
