摘要
本文通过Charpy冲击试验,对混杂纤维复合材料的冲击强度、冲击韧性指数随混杂比、界面数变化的规律以及冲击混杂效应作了研究,并且建立了冲击强度估算模型。
Hybridization is an effective way to improve the toughness of composites. In this paper an experimental investigation on impact behaviour of hybrid composites is conducted by using Charpy impact test. The variation of impact strength and impact toughness index of C/K and C/G hybrid composites of different matrices with hybrid ratio and interface number is revealed. The dynamic hybrid effect is also investigated from different aspects. Meanwhile, the estimating model for impact strength is established and the estimated values are in good agreement with experimented ones. Using this models the hybrid effect coefficients based on different definitions are organically related.This provides basis for further study of impact constitutive equation.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1989年第5期A267-A273,共7页
Acta Aeronautica et Astronautica Sinica
关键词
混杂纤维
复合材料
冲击试验
hybrid composites, impact testing, hybrid effect, mechanical properties.
