长玻璃纤维增强聚丙烯复合材料拉伸试样纤维取向模拟研究  

Simulation research on fiber orientation of tensile sample for long glass fiber reinforced polypropylene composite material

作　　者：孙国栋[1] 刘长华[1] 

机构地区：[1]九江学院机械与材料工程学院,江西九江332005

出　　处：《模具工业》2017年第12期56-60,共5页Die & Mould Industry

基　　金：国家自然基金项目(5156050036);九江学院校级科研课题研究项目(2014KJYB015)

摘　　要：介绍采用Moldflow软件对长玻璃纤维增强聚丙烯复合材料拉伸件的纤维取向及拉伸性能进行模拟研究,对模拟后的纤维取向、拉伸模量、泊松比进行了分析,结果表明:沿流动方向,靠近浇口部位的平均纤维取向不佳,远离浇口部位的标距尾部和过渡部位的平均纤维取向较好,垂直流动方向上平均纤维取向存在分层;纤维取向整体呈现明显的皮芯结构;试样的拉伸模量和泊松比随纤维取向的变化呈现出与其相一致的趋势。The fiber orientation and tensile properties of long glass fiber reinforced polypro- pylene composite material were studied by using Moldflow software. And the fiber orientation, tensile modulus, Poisson＇s ratio of it were analyzed. The results showed that the aver- age fiber orientation near the gating was bad, while that was good far away from the gat- ing in the end of the gauge and the transition part, and it was layered on the vertical direction of the flow. And the tensile modulus and Poisson＇s ratio of the sample were consistent with the change of the fiber orientation.

关 键 词：长玻璃纤维 纤维取向 拉伸模量 泊松kh Moldflow 

分 类 号：TG76[金属学及工艺—刀具与模具] O242.21[理学—计算数学]