复合材料厚板结构压缩稳定性和承载能力分析
Analysis of compression stability and load capacity of thick composite plate structures
王春寿 1张笑宇 2詹志新 3肖浩1
作者信息
- 1. 中国商飞上海飞机制造有限公司复合材料中心,上海 200123
- 2. 南方科技大学力学与航空航天工程系,深圳 518055
- 3. 北京航空航天大学航空科学与工程学院,北京 100191
- 折叠
摘要
针对复合材料厚板压缩稳定性分析问题进行了研究.对复合材料机身厚板结构进行压缩试验,试验中发现长桁底部蒙皮先发生屈曲,长桁未起到隔波作用;对该结构采用有限元线性和非线性分析方法进行分析,分析结果验证了该屈曲特征.根据试验和分析结果对稳定性分析方法进行了修正,采用修正的分析方法计算得到的屈曲载荷和承载能力精度更高,为复合材料厚板结构的屈曲分析和承载能力计算提供了一种新的方法.
Abstract
The compression stability of composite thick plates was studied.Firstly,the compression test was carried out on the thick plate structure of the composite fuselage.It was found that the bottom skin of the stringer was buckling first,and the stringer did not play the role of wave isolation.Secondly,the finite element linear and nonlinear analysis methods were carried out on the structure.The he buckling characteristics was verified.Finally,the stability analysis method was revised according to the test and analysis results.The buckling load and bearing capacity calculated by the modified analysis method were more accurate.A new method for buckling analysis and load-bearing capacity calculation of composite thick plate structures was established.
关键词
复合材料/加筋板/厚板/稳定性/承载能力/横向剪切Key words
composite/stiffened plates/thick plate/stability/load capacity/transverse shear引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
维普
万方数据