Mechanical Behavior and Failure Mechanism of 2.5D(Shallow Bend-joint, Deep Straight-joint) and 3D Or

• 作 者: 赵晓琳 DU Jianhua YANG Hongwei JIA Chengchang GAO Heng WANG Dafeng Lü Yingying
• 机 构: School of Materials Science and Engineering,University of Science and Technology Beijing,Department
• 出 处: Journal of Wuhan University of Technology(Materials Science)
• 发表日期: 2016年06期
• 关键词: resin flexural straight UHMWPE shallow polyethylene VARI curing woven assistant

Ultra-high molecular weight polyethylene(UHMWPE) fiber/epoxy composites were fabricated by a vacuum assisted resin infused(VARI) processing technology. The curing condition of composites was at a cure temperature of 80 ℃ for 3h in a drying oven. The characteristics of 2.5D(shallow bend-joint and deep straight-joint) structure and 3D orthogonal structure were compared. The failure behavior, flexural strength, and microstructures of both composites were investigated. It was found that the flexural property was closely related to undulation angle θ. The flexural strength of 3D orthogonal structure composite was superior to the other two structures composites with the same weave parameters and resin.

Ultra-high molecular weight polyethylene (UHMWPE) fiber / epoxy composites were fabricated by a vacuum assisted resin infused (VARI) processing technology. The curing condition of composites was at a cure temperature of 80 ° C for 3h in a drying oven. The characteristics of 2.5D (shallow bend-joint and deep straight-joint) structure and 3D orthogonal structure were compared. The failure behavior, flexural strength, and microstructures of both composites were investigated. It was found that the flexural property was closely related to undulation angle θ The flexural strength of 3D orthogonal structure composite was superior to the other two structures composites with the same weave parameters and resin.