复合材料科学与工程Issue(12)：126-133,8.DOI:10.19936/j.cnki.2096-8000.20241228.018
三维机织复合材料压缩渐进损伤分析与失效机理
Compression failure mechanism and progressive damage analysis of 3D woven composites
郭秀梅 1王坤 1张楠 1李超 2周光明1
作者信息
- 1. 南京航空航天大学 航空航天结构力学及控制全国重点实验室,南京 210016
- 2. 中材科技股份有限公司 南京玻璃纤维研究设计院,南京 210012
- 折叠
摘要
Abstract
A combination of experiment and simulation was used to study the progressive damage and failure modes of 3D woven composites.The stress-strain curves of the material were obtained through the warp and weft compression test.Based on the microscopic characterization of the material,the microscopic finite element cell model was established to simulate the stress-strain response and damage mechanism.Through the comparison of simulation and experiment,it is considered that the simulation results agree well with the test results.The compressive modulus and strength of the material along the weft are higher than those along the warp.Under the weft compressive load,the main reasons for the failure of the 3D woven composite material are the crushing fracture of weft yarns and the cracking of the matrix.Under warp compressive load,warp yarns are curved yarns,which extrude the matrix and weft yarns,which easily lead to the crushing of the matrix between the yarns and produces delamination cracking.关键词
三维机织复合材料/压缩性能/有限元模拟/渐进损伤分析Key words
3D woven composite/compression performance/finite element simulation/progressive damage a-nalysis分类
通用工业技术引用本文复制引用
郭秀梅,王坤,张楠,李超,周光明..三维机织复合材料压缩渐进损伤分析与失效机理[J].复合材料科学与工程,2024,(12):126-133,8.
