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研究0°单向、0°/90°交错和平纹织物三种不同铺层方式玄武岩纤维增强复合材料低速冲击加载力学性能。在实验中,通过手糊成型法并在硫化机上加热加压制备层压复合材料,且在Instron9250落锤冲击测试仪上完成层压复合材料低速冲击试验,得到载荷-挠度曲线和载荷-时间曲线,用于分析三种不同铺层方式玄武岩纤维增强不饱和聚酯树脂层压复合材料低速冲击加载力学性能。通过观察层压复合材料破坏形态来分析其破坏方式。实验结果表明:0°/90°交错层压复合材料和平纹织物增强层压复合材料抗低速冲击性能优于0°单向层压复合材料;0°单向层压复合材料破坏方式为裂纹沿着纤维方向伸展,而0°/90°交错层压复合材料和平纹织物层压复合材料破坏只发生在冲击点附近局部区域。
The mechanical properties of basalt fiber reinforced composites under low velocity impact loading were studied by three different lay-up methods of 0 ° unidirectional, 0 ° / 90 ° staggered and plain weave. In the experiment, the laminated composite was prepared by the hand lay-up method and heated and pressed on a vulcanizer, and the low velocity impact test of the laminated composite was completed on the Instron 9250 drop-weight impact tester to obtain the load-deflection curve and the load- Time curve for the analysis of three different ply way basalt fiber reinforced unsaturated polyester resin laminated composite low speed impact loading mechanical properties. By observing the failure morphology of laminated composites to analyze the failure mode. The experimental results show that the 0 ° / 90 ° staggered laminated composites and plain weave fabric reinforced laminated composites have better low-speed impact resistance than 0 ° unidirectional laminated composites. The failure mode of 0 ° unidirectional laminated composites is crack edge Fiber direction, while the 0 ° / 90 ° staggered laminated composites and plain weave laminate composites damage only occurred in the local area near the impact point.