Finite Element Analysis on the Impact-induced Damage of Composite Fan Blades Subjected to a Bird Strike

被引：0
|
作者：
Nishikawa, Masaaki [1 ]
Hemmi, Kei [2 ]
Park, SangChul [2 ]
Nadabe, Takeaki [3 ]
Takeda, Nobuo [3 ]
机构：
[1] Tohoku Univ, Dept Nanomech, Sendai, Miyagi 980, Japan
[2] Univ Tokyo, Dept Aeronaut & Astronaut, Tokyo, Japan
[3] Univ Tokyo, Dept Adv Energy, Tokyo, Japan
来源：
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES | 2011年 / 54卷 / 185-86期
关键词：
Bird-strike Impact; Composite Materials; Simulation; Damage Analysis; LOW-VELOCITY IMPACT; SOFT BODY IMPACT; LAMINATED COMPOSITES; MODEL; EDGE;
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Carbon fiber-reinforced composites have been recently applied for engine fan blades because of their high specific strength. In the design of the fan blade, bird-strike impact is one of the greatest concerns, since impact-induced damage can lead to the engine stalling. This study presents a numerical method to analyze bird-strike impact as a soft-body impact on a cantilevered composite panel. Especially, we coupled a stabilized dynamic contact analysis, which enables appropriate prediction of impact force on the panel, with laminate damage analysis to predict the impact-induced progressive damage in the composite. This method is verified through a comparison with experimental results. With the numerical method, we investigate the effect of impact condition, blade thickness and shape on the impact-induced damage in a composite fan blade subjected to a bird strike. An intermediate blade thickness and a large blade curvature help to improve the bird-striking impact resistance of the composite.
引用
收藏
页码：238 / 245
页数：8
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