基于非线性接触的修理后层合板鸟撞损伤特性研究

Research on Bird Strike Damage of Repaired Composite Laminates Based on Nonlinear Contact Model

1.
College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300

摘要: 基于有限元方法,利用商用有限元分析软件MSC.Patran/Nastran,研究修理后层合板鸟撞问题。冲击后的复合材料层合板模型采用阶梯式挖补修理的方式进行修理,通过改变挖补修理的方式,如改变铺层顺序及阶梯数,研究修理后的模型受到冲击的损伤区域及损伤应力规律。
- 非线性接触 /
- 复合材料层合板 /
- 鸟撞 /
- 有限元
Abstract: Based on the finite element method,commercial finite element analysis software MSC. Patran/Nastran is used to do some research on bird strike damage of laminated composite plate. The laminated composite plate dam-aged will be repaired with a stepped repair way. The damage model and the damaged stress of repaired areas of laminated composite plate with different repairing methods,such as changing the layer order and ladder number,are studied in simulation. This research can provide certain theoretical basis to the impact damage on engineering.
- repair /
- calculations /
- composite materials /
- computer simulation

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