摘要
本文采用真空辅助树脂渗透成型(VARI)工艺成型了0°/90°玻璃纤维经编织物和0°/90°碳纤维经编织物不同混杂比的复合材料板,并探讨了混杂比、混杂方式等因素对碳-玻纤混杂纤维复合材料的拉伸性能及低速冲击性能的影响。研究结果表明:少量碳纤维的加入便可很好地改善纯玻璃纤维材料的拉伸和冲击性能;同种混杂比下,玻璃纤维铺覆表面的层间混杂结构拥有最好的拉伸性能;对于低速冲击性能来说,随着试样中碳纤维含量的增加,冲击能降低,扩展能降低,韧性指数降低,冲击后剩余压缩强度增大;碳纤维、玻璃纤维含量相接近时,玻璃纤维铺覆表面的层间混杂结构表现出较好的抗低速冲击性能;碳纤维、玻璃纤维含量相差较大时,玻璃纤维铺覆表面的夹芯结构的抗低速冲击性能较好。
In this paper,0°/90°glass fiber non-crimp fabrics and 0°/90°carbon fiber non-crimp fabrics composite laminates with different hybrid ratios were formed by Vacuum Assisted Resin Infusion(VARI)process,and the effects of different hybrid ratios and hybrid ways on hybrid composite tensile and low velocity impact performance have been studied.The results are as follows:the tensile and low velocity impact properties of glass fiber composites are greatly improved when small amount of carbon fibers are added;glass fiber covered surface and inter-layer hybrid structure have the best tensile properties in the same kind of hybrid ratios;for the low-velocity impact properties of hybrid fiber composites,the impact energy,the expansion energy,the toughness index are decreased and the compressive residual strength properties of damaged composites are improved with the increase of carbon fiber content.Meanwhile,glass fiber covered surface and sandwich hybrid structure show the best performance of the low-velocity impact when the contents of carbon fibers and glass fibers are close.Otherwise,glass fiber covered surface and inter-layer hybrid structure have the better impact performance.
作者
王海雷
段跃新
王维维
蒋金隆
WANG Hai-lei;DUAN Yue-xin;WANG Wei-wei;JIANG Jin-long(AVIC Manufacturing Technology Institute,Beijing 100024,China;School of Materials Science and Engineering,Beihang University,Beijing 100191,China;AVIC Composite Corporation Ltd.,Beijing 101300,China)
出处
《复合材料科学与工程》
CAS
北大核心
2021年第2期102-109,共8页
Composites Science and Engineering
