复合材料科学与工程Issue(7)：66-73,82,9.DOI:10.19936/j.cnki.2096-8000.20260728.008
多层混杂纤维复合材料等效渗透率影响特性分析
Analysis of influencing characteristics of equivalent permeability of multilayer hybrid fiber composites
摘要
Abstract
The comprehensive performance of hybrid fiber composites is significantly superior to that of single fi-ber composites.As a core parameter characterizing the impregnation ability of fibers,permeability directly affects the quality and mechanical properties of products.In this paper,a combined method of numerical simulation and experi-ment is adopted to study the equivalent permeability of hybrid fiber composites.A two-scale porous medium unit cell model considering the porosity within fiber bundles is established,and the reliability of this approach is validated by experimental findings.The influencing factors of fiber type,layering method,and nesting effect on the equivalent per-meability of the unit cell are investigated.The results show that an increase in carbon fiber content in the unit cell significantly reduces the equivalent permeability of the unit cell;under different layering sequences,the low permea-bility layer inhibits fluid flow in the high permeability layer,thereby reducing the equivalent permeability of the unit cell;the nesting effect reduces the internal porosity of the fabric and increases the curvature of the flow channel,lead-ing to a significant decrease in the equivalent permeability of the unit cell.关键词
混杂纤维/双尺度多孔介质/等效渗透率/单胞模型/嵌套效应Key words
hybrid fiber/two-scale porous medium/equivalent permeability/unit cell model/nesting effect分类
通用工业技术引用本文复制引用
李永静,胥昇文,晏石林,张晓楠..多层混杂纤维复合材料等效渗透率影响特性分析[J].复合材料科学与工程,2026,(7):66-73,82,9.基金项目
武汉理工大学2025年自主创新基金基础学科研究能力提升项目(104972025KFYjc0081) （104972025KFYjc0081）
