南京理工大学学报（自然科学版）2024，Vol.48Issue(1)：62-73,12.DOI:10.14177/j.cnki.32-1397n.2024.48.01.006
民机雷达罩的抗鸟撞非线性力学行为仿真研究
Simulation study of nonlinear mechanical behavior of civil aircraft radome against bird strike
庞小强 1朱小龙 1荆雲杰 2龙舒畅 2唐维 1王焰 1刘卫1
作者信息
- 1. 中航成飞民用飞机有限责任公司,四川 成都 610092
- 2. 华南理工大学 土木与交通学院,广东 广州 510641
- 折叠
摘要
Abstract
In order to study the bird strike resistance of a civil aircraft radome structure,a radome model using fiber-reinforced nonlinear dynamic constitutive is established based on ABAQUS.The constitutive model comprehensively considers the nonlinear behavior and strain rate effect of composite materials and foam materials.In this paper,we consider the nonlinear and strain rate effects of the panel materials(including composites and foam),the layer sequences and angles of the sandwich structure,and the thickness ratio of the front and rear panels.The results show that the nonlinear dynamic constitutive of fiber-reinforced composites can well describe the strain rate strengthening effect of the radome composite structure under shock loading.The damage mechanisms of radome panels of different layer angles are similar,and the primary failure mechanism is matrix tensile damage.The model with the panel layer sequence of[0/-45/45]/[45/-45/0]and a near-one front and rear panel thickness ratio has higher energy absorption capacity.关键词
复合材料/雷达罩/鸟撞/数值模拟/非线性分析/本构模型Key words
composite materials/radome/bird strike/numerical simulation/nonlinear analysis/constitutive model分类
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庞小强,朱小龙,荆雲杰,龙舒畅,唐维,王焰,刘卫..民机雷达罩的抗鸟撞非线性力学行为仿真研究[J].南京理工大学学报（自然科学版）,2024,48(1):62-73,12.
