纤维复合材料及其混杂结构的冲击性能研究

Study on the Impact Properties of Fibre Composites and Their Hybrid Structures

本文用仪器化冲击试验机研究了纤维复合材料及其混杂结构的冲击性能,分析了碳纤维、玻璃纤维复合材料在冲击载荷下的能量性质(含冲击能和韧性指数)及断裂特性,引入了动弯曲强度。σ_d来评定复合材料在Charpy冲击试验中的强度性能,并与以往加载方式相近的三点弯曲试验结果作了比较。

The impact properties of FRP and their hybrid sturctures have been studied on the instrumented Charpy impact machine in this paper. The energy characteristics, including inpact energy and ductility index, and fracture feature of CFRP and GFRP under impact load have been analysed. The dynamic bend strength 6dwas introduced into the evaluation of the strength property of composites in the Charpy impact test, and compared with the results of three-point bend test which was similar as the previous in loading way.