基于近场动力学的天线罩复合材料侵彻损伤研究

Study on Penetration Damage of Composite Material for Radome by Peridynamics

摘要:

基于近场动力学方法,综合分析了天线罩层合复合材料结构在高速小型飞行物的冲击作用下的渐进损伤过程,并综合考虑了飞行物的几何形状对材料损伤模式和飞行物剩余速度的影响。仿真结果表明:在高速小型飞行物冲击作用下,天线罩层合复合材料结构将发生侵彻现象,其损伤模式以基体损伤为主,损伤扩展形式及程度随着侵彻时间渐进变化,并且飞行物的形状对于材料的损伤形式和损伤程度具有明显的影响。

Abstract:

Based on the peridynamics theory, the progressive damage process of theradome laminated composite structure under the impact of high-speed small flying objects isanalyzed, The influence of the flying object shapes to the material damage mode and theflying object residual velocity is considered. The simulation results show that the radomeaminated composite materia structure will be penetrated under the impact of high-speeosmall flying objects. The main damage mode of the composite structure is matrix damageThe form and degree of damage expansion change gradually with the penetration time. Theflying object shapes have significantly impact on the damage form and degree of the material.