摘要
针对CCF300/QY9511碳纤维/双马树脂复合材料层合板开展了连续冲蚀试验,研究了不同冲蚀条件下的质量冲蚀率和损伤规律。结果表明:随着冲蚀角度和供砂率的增加,质量冲蚀率先增加后减少,并在60°左右出现峰值冲蚀率;冲蚀率随冲蚀速度的增加而增加;复合材料表面铺设平纹布可增强复合材料抗低速冲蚀的能力,但增强效果在高速冲蚀时不明显;复合材料主要冲蚀机制为微裂纹的产生、纤维的断裂、纤维-基体脱黏以及基体变形。该研究明晰了双马树脂基复合材料层合板材料的去除机理及损伤变化规律,为后续航空复合材料结构抗冲蚀研究奠定了基础。
Continuous erosion test was carried out for the CCF300/QY9511 carbon fiber/bismaleimide resin composite laminate,and the mass erosion rate and damage law under different erosion conditions were studied.It was found that the mass erosion first increased and then decreased with the increase of the erosion angle.The peak erosion rate appeared around the erosion angle of 60°.The erosion rate increased with the increase of the erosion rate,while it first increased and then decreased with the increase of the sand supply rate.Laying plain weave cloth on the surface of the composite laminates could enhance the ability of the composite material to resist low-speed erosion.However,the improvement effect under high-speed erosion was not obvious.The main erosion mechanisms of composite materials accounted for the generation of micro-cracks,fiber breakage,fiber-matrix debonding,and matrix deformation.The research clarified the removal mechanism and damage change law of composite laminates,laying a foundation for subsequent research on erosion resistance of composite materials.
作者
刘璐璐
于飞
赵振华
罗刚
陈伟
LIU Lulu;YU Fei;ZHAO Zhenhua;LUO Gang;CHEN Wei(Aero-engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology,College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2024年第5期169-180,共12页
Journal of Aerospace Power
基金
国家科技重大专项(J2019-Ⅴ-0004-0095)
国家自然科学基金(51975279)。
关键词
复合材料层合板
双马树脂
砂粒冲蚀
连续冲蚀
损伤机理
composite laminates
bismaleimide resin
sand erosion
damage mechanism
continuous erosion
