爆炸与冲击2023，Vol.43Issue(12)：38-53,16.DOI:10.11883.bzycj-2023-0130
碳纤维叶片的鸟弹冲击响应及损伤
Bird impact response and damage of carbon fiber blades
摘要
Abstract
The impact resistance of T300 carbon fiber blades was studied through experiments and numerical simulations.The deformation damage pattern and the effect of the number of fiber layers on the impact resistance of the blade are studied.The impact experiment was conducted on the carbon fiber blades of different layers.Based on the macro-level continuum damage mechanics theory and the Hashin failure criterion,a vectorized user-material subroutine was written for the carbon fiber material,and the smooth particle hydrodynamics algorithm was used to simulate the gelatin projectiles.Numerical simulations of bird impact on the composite blades with different layers were carried out in ABAQUS/Explicit.The blade deformation process,bird flow state,and impact duration time of the experiments agree well with the numerical results.In the initial impact stage,the blade specimens have large deformations,and the deformation modes of the three carbon fiber blades with different layers are similar to each other.However,in the impact attenuation and constant flow stages,the deflection and fracture of different layers of carbon fiber blades are quite different.The damage mode of the 6-layer carbon fiber blade is complete fractures at the blade root and top,the damage mode of the 8-layer carbon fiber blade is root fracture,and there is no obvious macroscopic visible damage in the 10-layer carbon fiber blade.Under the gelatin projectile impact loading,the blade deformation mode is mainly coupled with the bending and torsional deformation process,and the bending deformation dominates the damage and failure process.Experimental results show that the damage pattern of carbon fiber blades is mainly classified as(1)edge damage at the root,(2)complete fracture at the root,and(3)complete fracture at the root and top edge.The impact resistance of carbon fiber is greatly influenced by the number of layers.The mechanism analysis of gelatin projectile impact on carbon fiber blades through experiments and numerical simulations can provide a reference for the engineering design and application of carbon fiber blades.关键词
碳纤维叶片/鸟击/明胶鸟弹/动态响应/断裂损伤Key words
carbon fiber blade/bird impact/gelatin projectiles/dynamic response/fracture damage分类
数理科学引用本文复制引用
张景景,谢洋,刘志芳,马小敏,李世强..碳纤维叶片的鸟弹冲击响应及损伤[J].爆炸与冲击,2023,43(12):38-53,16.基金项目
国家自然科学基金(12072219,12202303,12272254) （12072219,12202303,12272254）
