摘要
通过超声波扩展技术将T700-12K碳纤维扩展成20mm宽,然后利用全自动编织机编织成平纹布,最后采用后浸渍法中的胶膜法制备高性能YPH-69/T700和SZ-125/T700的织物预浸料。预浸料的单位面积纤维质量为(80±3)g/m^2,单层固化厚度为(0.080±0.015)mm。通过模压工艺制备层合板测试力学性能,结果表明:利用SZ-125树脂制备的层合板比用YPH-69树脂制备的层合板力学性能好,与树脂的性能密切相关。同时用abaqus软件建立有限元模型,研究在拉伸、压缩载荷下复合材料层合板的应力分布,模拟结果与实验过程中断裂位置相符。
T700 - 12K carbon fibers were expanded into 20mm in width by ultrasonic expansion technique, then car- bon fibers after expansion were woven for plain fabric by automatic braider, at last Epoxy YPH - 69/T700 and SZ - 125/ T700 fabric prepregs were prepared successfully by using plastic film method of post impregnation method. The areal fiber weight of prepared fabric prepregs is （80± 3 ）g/m2, and thickness of single prepreg ply is （0.080 ± 0.015 ）mm. The lam- inates were fabricated by molding techniques to test mechanical properties. Results of mechanical test indicate that lami- nates fabricated with resin SZ - 125 are better than the laminated fabricated with resin YPH -69 in relation to resin proper- ties. A finite element model was established by abaqus software, the stress distribution was simulated under the tensile and compressive load. The simulation results are in consistent with the fracture positions of/the experimental process.
出处
《纤维复合材料》
CAS
2017年第3期8-11,共4页
Fiber Composites
