二维三轴向编织混杂层合复合材料的冲击性能  

Investigation on impact properties of 2-D triaxial braided-hybrid laminated composites

作　　者：王文莎 阎建华[3] 顾海麟[4] 

机构地区：[1]东华大学纺织面料技术教育部重点实验室,上海201600 [2]东华大学纺织学院,上海201600 [3]东华大学研究院,上海201600 [4]上海汽车集团股份有限公司,上海201600

出　　处：《纺织学报》2015年第10期54-61,共8页Journal of Textile Research

基　　金：上海市科技成果转化和产业化项目(12521102400);上海市教委上海高校知识服务平台项目(ZF1215)

摘　　要：为探讨混杂结构与破坏机制关系,本文研究了在铺层数目相同时,4组二维三轴向编织碳纤维/玻璃纤维混杂层合复合材料受到低速冲击后的冲击性能。实验结果表明:编织混杂层合复合材料受冲击后表面产生的裂纹均比纯碳纤维或纯玻璃纤维编织层合复合材料多,且正面裂纹纵向扩展范围较大,背面裂纹横向扩展范围较大;碳纤维+玻璃纤维+碳纤维编织层合复合材料单位厚度吸收的能量比纯碳纤维编织层合复合材料提高7.61%;玻璃纤维+碳纤维+玻璃纤维编织层合复合材料单位厚度吸收的能量比纯玻璃纤维编织片层合复合材料提高2.21%;混杂层合复合材料受冲击后在厚度方向产生的损伤扩展较少;层合复合材料在低速冲击作用下不易分层,通过合适的铺层方式及纤维组合能够实现正的混杂效应,并能有效改善材料的抗冲击性能。In order to investigate the relationship between the hybrid structure and the failure mechanism, the impact properties of 2-D triaxial braided-hybrid laminated composites with the same layers while being subjected to low speed impact, were investigated. In the case of the same layers, the cracks generated on the surface of braided-hybrid laminated composites were more than the composites composed with 3 same layers. And the extended range of cracks on the impacted surface was larger along the longitudinal direction, while on the back surface, it was larger along the transverse direction. The absorbed energy per thickness of carbon fiber ＋ glass fiber ＋ carbon fiber braided laminated composite was 7.61% larger than that of the composites composed with same layers, while the glass fiber ＋ carbon fiber ＋ glass fiber braided laminated composite increased by 2.21%. The composites generated less damage propagation along the thickness direction. The composites are prevented from layering under low speed impact. And the impact properties can effectively improve by suitable layering mode and fiber combination to achieve positive hybrid effect.

关 键 词：二维三轴向编织 层合复合材料 混杂铺层 裂纹 吸收能量 冲击性能 

分 类 号：V258.3[一般工业技术—材料科学与工程]