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发表刊物：Composite Structures

关键字：Stiffened composite panels； Equivalent stiffness； Buckling； Post-buckling； Failure； Compression test

摘要：The purpose of this paper was to study the effect of I-shape stiffener stiffness on the buckling and post-buckling, up to collapse behavior of stiffened composite panel under the uniform uniaxial compression load. Six stiffened composite panel configurations, which were orthogonally designed with two skin configurations and three I-shape stiffener configurations, were took into account in the experimental investigation. Three specimens for each configuration (18 specimens in total) were manufactured for test. Before tests, the key dimensions of I-stiffener and skin were measured. Furthermore, all the specimens were also inspected visually and detected by the ultrasonic C-scan system. No initial delamination or debonding area was found on all the specimens according to their C-scan images. The experimental results show that the equivalent compression stiffness of I-shape stiffener has great influence on the buckling load and failure mode of stiffened panel, but a little effect on the fa

论文类型：期刊论文

学科门类：工学

一级学科：航空宇航科学与技术

文献类型：J

卷号：120

页面范围：334-345

是否译文：否

发表时间：2015-02-01

合写作者：Jiayi Yan,Zhi Chen,Mingbo Tong,Yuequan Wang