华东理工大学学报（自然科学版）2017，Vol.43Issue(4)：465-473,9.DOI:10.14135/j.cnki.1006-3080.2017.04.003
玻纤分布层合热塑性复合材料的力学性能及其失效行为
Mechanical Properties and Damage Behavior of Thermoplastic Composites with Glass Fiber Distribution-Layering Design
摘要
Abstract
Based on the macro heterogeneity reinforcement structure design,two different forms of continuous glass fiber mat and mesh were used to prepare the glass fiber distribution-layering thermoplastic composites by the continuously running double-steel belt press machine.The influences of glass fiber distribution-layering structures on composite's mechanical properties and damage behavior were discussed.The results reveal that there is difference in improving the tensile and flexural properties with different reinforcement distribution-layering structures.The outer side continuous glass fiber mat in distribution-layering structure reinforcement can not only restrain the development of hairline crack which is perpendicular to stress direction,but also induce layers peeling with extra pull-broken glass fibers,and thus enhances the tensile properties of composites significantly.On the other hand,the outer side glass fiber mesh in distribution-layering structure reinforcement provides oriented fibers bearing more force with tension failure mode,therefore improves the flexural properties significantly.Fiber bundles within the mesh play a role of toughening,and largely increase the impact strength.Compared with glass fiber mat reinforced thermoplastics (GMT),for the composites with appropriate distribution-layering structure the tensile and flexural properties can increase by 59%~76%,and the notched Izod impact strength can increase by 53%.关键词
玻纤复合材料/增强体分布/层合结构/力学性能/失效破坏Key words
glass fiber composites/reinforcement distribution/layering structure/mechanical property/damage behavior分类
化学化工引用本文复制引用
张杨,沈春银,李宾,方荀,戴干策..玻纤分布层合热塑性复合材料的力学性能及其失效行为[J].华东理工大学学报（自然科学版）,2017,43(4):465-473,9.基金项目
国家自然科学基金(21376086) （21376086）
