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

页码：238 / 245

页数：8

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