电子元件与材料2025，Vol.44Issue(6)：673-680,8.DOI:10.14106/j.cnki.1001-2028.2025.0095
基于3D打印碳化硅增强铝基复合材料的直升机机翼结构抗疲劳性能研究
Fatigue resistance of helicopter wing structure based on 3D printed silicon carbide reinforced aluminum matrix composite material
摘要
Abstract
In order to accurately obtain the loading of the civil helicopter wing structures during flight and grasp the fatigue resistance of the wing structures,a method for evaluating the fatigue resistance of helicopter wing structures based on 3D-printed silicon carbide reinforced aluminum matrix composites was proposed.The pure aluminum powder was taken as the matrix material,and the silicon carbide reinforced aluminum matrix composites were prepared by compositing silicon carbide particles with pure aluminum powder matrix,combining acrylamide,sodium hexametaphosphate,polyvinylpyrrolidone and other materials,and the specimens of the civil helicopter wing structures were prepared by 3D printer.The fatigue test loading mode was set up and the interfacial shear stress recession model was applied.The test results show that the stress distribution of the wing structure under different vibration modes is different,and the stress concentration area changes with the vibration mode;with the increase of the cyclic loading times,the percentage of the fiber failure volume of SiC-reinforced aluminum matrix composites rises,and the higher the fatigue peak stress,the faster it rises;the fatigue peak stress of the wing specimen decreases slowly and stays at a high level at 400～600 K,and then drops sharply after exceeding 600 K,finally falling to 180 MPa at 900 K.The performance comparison shows that the fatigue life of the material is increased by 1.8 times and the fatigue crack extension rate is reduced by 31.2％at different temperatures and cycle loading times.It is verified that the materials prepared in this paper have excellent fatigue resistance under different temperature environments.The results can help to optimize the wing structure design and enhance the safety and reliability of civil helicopters in complex service environments.关键词
3D打印/碳化硅/铝基复合材料/民用直升机/机翼结构/抗疲劳性能Key words
3D printing/silicon carbide/aluminum based composite materials/civilian helicopter/wing structure/fatigue resistance performance分类
通用工业技术引用本文复制引用
冯晓晖..基于3D打印碳化硅增强铝基复合材料的直升机机翼结构抗疲劳性能研究[J].电子元件与材料,2025,44(6):673-680,8.基金项目
江西省教育厅科学技术研究项目(GJJ202810) （GJJ202810）
景德镇市科技项目(20224GY010-02) （20224GY010-02）
