复合材料科学与工程Issue(9)：75-83,9.DOI:10.19936/j.cnki.2096-8000.20250928.010
纬纱层向偏转角对2.5D机织复合材料经向拉伸力学行为的影响
Effects of weft yarn deflection angle in the thickness direction on the warp-direction tensile mechanical behavior of 2.5D woven composites
姜鹏飞 1李磊 2张一帆3
作者信息
- 1. 北京玻钢院复合材料有限公司,北京 100192||先进无机纤维与复合材料全国重点实验室,北京 100192
- 2. 北京玻钢院复合材料有限公司,北京 100192
- 3. 天津工业大学 先进纺织复合材料教育部重点实验室,天津 300387
- 折叠
摘要
Abstract
2.5D woven composites demonstrate promising application prospects in aerospace and other fields due to their excellent integral structural characteristics.However,the deflection characteristics of weft yarns in the thick-ness direction of preforms lead to more complex mechanical properties and failure mechanisms,significantly limiting their widespread application in engineering fields.This study focuses on typical 2.5D woven T300/QY8911-Ⅳcom-posites.By establishing unit-cell models with weft yarn deflection angles of 0°,5° and 20°,and incorporating the 3D Hashin failure criterion and Mises failure criterion,a progressive damage model for 2.5D woven composites was developed to systematically investigate the warp-direction tensile mechanical behavior under different deflection an-gles.The results indicate that as the weft yarn deflection angle increases,the warp-direction tensile strength of 2.5D woven composites shows a trend of first increasing and then decreasing.This research provides theoretical foundations for the structural design and engineering applications of 2.5D woven composites,holding important practical engi-neering significance.关键词
2.5D机织复合材料/纬纱偏转角/单胞模型/渐进损伤Key words
2.5D woven composites/weft yarn deflection angle/unit-cell model/progressive damage分类
通用工业技术引用本文复制引用
姜鹏飞,李磊,张一帆..纬纱层向偏转角对2.5D机织复合材料经向拉伸力学行为的影响[J].复合材料科学与工程,2025,(9):75-83,9.
