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本文通过设计11组碳/玻混杂纤维复合材料(HFRP)样条的拉伸对比实验,分析研究CF与GF的不同混杂比对复合材料拉伸性能的影响。结果表明,随着玻璃纤维中加入碳纤维相对体积分数的增大,其拉伸强度和模量也随之增大,断裂延伸率随之降低。通过理论计算,50m长风电叶片主梁帽采用碳/玻混杂复合材料比采用纯玻纤其重量可降低10%~60%,成本将提高150%~310%,而相对于整支叶片重量可降低4%~22%,相对于整机其整体成本相当甚至降低。
In this paper, we design 11 sets of carbon fiber / glass fiber hybrid fiber (HFRP) spline tensile comparison experiments to study the different CF and GF mixed ratio on the tensile properties of composite materials. The results show that with the increase of the relative volume fraction of carbon fiber added into glass fiber, the tensile strength and modulus increase with the decrease of elongation at break. According to the theoretical calculation, the weight of the spar cap of 50m long wind turbine blades using carbon / glass hybrid composite material can be reduced by 10% ~ 60% and the cost by 150% ~ 310% compared with that of pure glass fiber, Reduce 4% ~ 22%, relative to the overall cost of the whole quite or even lower.