材料工程Issue(2)：93-98,6.DOI:10.3969/j.issn.1001-4381.2013.02.019
炭纤维复合材料共固化液体成型工艺及层间性能研究
Investigation of Co-cured Liquid Composite Molding and Interlaminar Property for Carbon Fiber Composites
摘要
Abstract
The carbon fiber/epoxy resin matrix composite laminates were fabricated using co-cured liquid composite molding (LCM). The compaction of laminates and diffusion of the two kinds of resins were investigated. Mode-Ⅰ delamination fracture toughness and short beam shear strength were measured to evaluate the interlaminar property of the co-cured laminates and were compared with those of laminates processed by prepreg molding and liquid composite molding. Moreover, the effects of fiber orientation at the interface between prepreg part and LCM part on GIC were studied. The results show that the laminates processed by co-cured LCM have high compacting degree in the intralaminar plies and have no obvious resin-rich area between plies. The two kinds of resins at the interface between prepreg part and LCM part diffuse to some extent. Affected by the diffusion of the two kinds of resins at the interface, the interlaminar fracture toughness of co-cured laminate is equivalent to the average of those of the prepreg laminate and LCM laminate, while short beam shear strength is determined by the weaker part. The fiber orientation at the interface between prepreg part and LCM part has significantly influence on GIC, and [45/90] fiber orientation has a better resistance to interlaminar fracture and propagation of delamination.关键词
炭纤维复合材料/共固化液体成型工艺/预浸料/Ⅰ型层间断裂韧性Key words
carbon fiber composite/ co-cured liquid composite molding/ prepreg/ mode-Ⅰ interlaminar fracture toughness分类
通用工业技术引用本文复制引用
王炯,李敏,顾轶卓,王绍凯,张佐光..炭纤维复合材料共固化液体成型工艺及层间性能研究[J].材料工程,2013,(2):93-98,6.基金项目
国家973项目(2010CB631104) （2010CB631104）
