AIRFRAME STRESS-STRAIN ANALYSIS WITH BATTLE DAMAGE

被引：0
作者：
Hub, Juraj [1 ]
机构：
[1] Univ Def, Fac Mil Technol, Brno 61200, Czech Republic
来源：
ICMT'09: INTERNATIONAL CONFERENCE ON MILITARY TECHNOLOGIES | 2010年
关键词：
Stress-strain analysis; FEM model; Semimonocoque structure; Battle damage; Loadcarrying capacity;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The paper deals with evaluating the load-carrying capacity of a FEM model of a semimonocoque airframe structure with battle damage caused by war operations. The simulation model is based on a rear helicopter fuselage structure. The fuselage structure model is proved by testing the real structure with bending and torsion moments based on operation load. The damages are simulated using circular cutouts that represent possible impact of anti-aircraft missile fragments using Ansys software. A methodics for evaluating the load-carrying capacity of loaded airframe structure based on yield stress criterion is introduced. The influencing factors are discussed. The structure shows a large resistance to the damage. The goals of the work help to estimate the flight, operational and repairing abilities of such damaged aircraft.
引用
收藏
页码：322 / 326
页数：5
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