SPH – Lagrangian study of bird impact on leading edge wing
SPH – Lagrangian study of bird impact on leading edge wing
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DOI：
10.1016/j.compstruct.2010.10.001
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发表时间：
2011-02
影响因子：
6.3
通讯作者：
Michele Guida;F. Marulo;M. Meo;A. Grimaldi;G. Olivares
中科院分区：
文献类型：
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作者：
Michele Guida;F. Marulo;M. Meo;A. Grimaldi;G. Olivares
以8lb的死鸡为实验对象，以250kts的速度撞击以铝合金2024-T3、蜂窝芯板和眩光盖板为复合材料的前缘舱，进行了鸟击试验。为了在C27-J飞机尾翼的进一步鸟类试验认证程序中使用参考，开发了一种经过验证的仿真方法。给出了实验测试的结果，以便它们可以用于验证数值模型，并促进在飞机设计和认证过程中使用数值工具。选择显式有限元软件LS-Dyna和MSC-Dytran分别使用拉格朗日和光滑粒子流体力学两种不同的方法进行模拟，并比较两种方法之间的差异。本文论证了鸟类撞击刚性目标的方法的准确性，从而产生了鸟类撞击模拟的最新技术。研究了玻璃纤维层压复合夹层复合材料的冲击性能、冲击后的破坏性能和冲击时的高强性能。
Experimental bird-strike tests were conducted using a dead chicken of 8lb with a speed of 250kts that hit on leading edge bay in composite material made with aluminium alloy 2024-T3, core panel of honeycomb and GLARE cover plates. A validated simulation methodology has been developed in order to use a reference in further bird test certification procedure on the fin of the C27-J aircraft. Results from the experimental tests are given so that they can be used to validate numerical models and promote the use of the numerical tools in aircraft design and certification process. The explicit finite element software LS–Dyna and MSC–Dytran were selected to perform the simulations using two different approaches: Lagrangian and smooth particle hydrodynamics techniques and a comparison was performed to define the differences between two approaches. This paper demonstrates the accuracy of the methods for bird impact on a rigid target and subsequently it produced the state of the art of the bird-strike simulation. Impact, failure after the impact, and high strength at impact properties of glass fibre laminate combination sandwich composite were investigated in this study.