航空科学技术2024，Vol.35Issue(3)：41-46,6.DOI:10.19452/j.issn1007-5453.2024.03.005
变刚度复合材料加筋壁板的压缩试验及仿真研究
Compression Test and Simulation Study of Curvilinear Fiber Composite Stiffened Laminates
摘要
Abstract
The curved fiber composites can be applied in the industry thanks to the automated fiber placement,however,the benefit of the curved fiber stiffened laminates has not been proved adequately by experimental data.The compression behavior of straight fiber stiffened laminates were compared with the curved fiber stiffened laminates,the skins were manufactured with the automated fiber placement processing,and then they were cocured with the cured I-shaped stringers,finally the two types of stiffened laminates were tested under compression.Results show that the straight fiber stiffened laminates failed at an average compressive load of 116.27kN,compared with a load of 151.62kN of the curved ones.It is found that the debonding firstly happens as the buckling of the skin in the case of straight fibers,then the stringer failed and it leads to the final failure of the whole structure.The curved fiber stiffened laminates show a similar behavior that a debonding exist and it leads to the stringer's crush.However,the debonding happened at a high compression load as the curved fiber stiffened laminates has a much higher buckling load.关键词
曲线纤维复合材料/加筋壁板/压缩/脱胶/工形长桁Key words
curved fiber composites/stiffened laminates/compression/debonding/I-shaped stringer分类
通用工业技术引用本文复制引用
原崇新,潘杰,屈蒙,谭源,董青海,党磊,李志远..变刚度复合材料加筋壁板的压缩试验及仿真研究[J].航空科学技术,2024,35(3):41-46,6.基金项目
国家自然科学基金(51875159) National Natural Science Foundation of China(51875159) （51875159）
