纤维增强塑料注塑成型集成仿真建模

注射成型过程中的熔体流动分析、纤维断裂和纤维取向预测紧密相关, 并且具有重要的 工程应用价值, 因此对其进行集成仿真是十分有意义的。本文在分析各自特点的基础上, 提出注塑 流动、纤维断裂和纤维取向集成仿真模型, 可对充填和后充填阶段的可压缩流体的非对称流动, 以 及由于熔体流动引起的纤维断裂、三维纤维取向行为进行统一建模, 并且熔体流动和纤维取向相 互耦合。 

INTEGRATED SIMULATION OF MELT FLOW, FIBER FRACTURE AND FIBER ORIENTATION FOR FIBER REINFORCED PLASTICS IN INJECTION MOLDING

The analyses of melt flow and the prediction of fiber fracture and orientation are tightly related. Therefore an integrated simulation of all the above aspects is necessary. In this paper, based on the analyses of the features of melt flow,fiber fracture and fiber orientation in injection molding, an integrated simulation model is presented. The proposed model can simultaneously simulate the asymmetric melt flow with compressible fluid during the filling and postfilling stages and complex fiber fracture and orientation behaviors induced by melt flow, and couple the melt flow and fiber orientation.