Compression after Impact performance of composite stiffened panels

Zhe Sun, Fei Xu, Wei Xie, Bo Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

Composite stiffened panels are widely used in the modern aircraft structure with the advantages of light weight, structural efficiency and good crack performance. But the stiffened panels have poor performance at thickness direction, especially for low-velocity impact. First of all, compressive tests were investigated and analyzed for two types of composite stiffened panels, which are integrated specimens and post-impact specimens. And the effect of low-velocity impact to the supporting capacity of composite stiffened panels was researched. Secondly, the finite element model was established to simulate the CAI (Compression After Impact)strength with the equivalent hole method. It is found that the analyze results match the experimental results well. According to the experimental results, structural damage and the maximum load caused by impact energy are scattering. Then the imperfect factors were introduced to reflect the initial imperfection, namely the initial deflection at thickness direction. The effect of different imperfect factors to the maximum load was discussed.

源语言英语
主期刊名Advanced Materials
2231-2235
页数5
DOI
出版状态已出版 - 2012
活动2nd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2011 - Guilin, 中国
期限: 16 12月 201118 12月 2011

出版系列

姓名Advanced Materials Research
415-417
ISSN(印刷版)1022-6680

会议

会议2nd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2011
国家/地区中国
Guilin
时期16/12/1118/12/11

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