采用真空灌注成型工艺制备了风力机叶片用玻璃纤维增强树脂基复合材料,研究了其显微结构、拉伸性能以及在气固两相流下的冲蚀磨损性能.结果表明:复合材料的拉伸曲线呈Weibull 分布,断裂前无明显的屈服现象;铺设6层纤维织物复合材料的拉伸强度为456.87 MPa,12层的拉伸强度为646.69 MPa,其弹性模量均为4720.36 MPa;复合材料冲蚀率分别随冲蚀颗粒冲击角和冲击速度的增加而增大,随着颗粒粒径的增大成波动性下降.
The glass fiber reinforced resin composite material for wind turbine blade was prepared by vacuum infusion method and the microstructure,mechanical and erosion-wear properties under gas-solid two phase flow were also studied.The results show that the tensile curve of the composite material was in accordance with Weibull distribution and no obvious yield point was observed before fracture.The tensile strength of the composite material with 6 fiber layers was 456.87 MPa and of 12 fiber layers was 646.69 MPa.The elastic modulus of the composite material was 4 720.36 MPa.The erosion rate of the composite material increased with the increase of impact angle and velocity of the erosion particles,and showed a decreased fluctuation with the increase of the particle size.
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