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中文摘要：
由于宏观制件尺寸与微特征尺寸的巨大差别,具有微特征的注塑充填过程是一个典型的几何多尺度结构流动和传热问题.采用数值和解析方法分析了带有微结构注塑成型过程的流动和传热行为,基于有限元/有限差分法动态模拟了宏观充模过程,并用解析法建立了微结构中的充填距离与微结构入口压力、尺寸、流动速度以及材料性质之间的定量关系,详细分析了宏观模温、注射速率及微特征尺寸等因素对微特征填充距离的影响.
英文摘要：
Injection molding of regular-sized plastic parts with microstructure is a specific flow and heat transfer problem with multi-scale geometric structure because of tremendous difference in dimensions.In this study,a hybrid method combining numerical simulation and analytical solution was used to analyze the flow behavior of this multi-scale geometric structure.Finite element /finite difference method was used to simulate the filling processing in macro cavity,and an analytical model is formulated to correlate...
同期刊论文项目
同项目期刊论文
Computational Modeling and Numerical Simulation of Flow-Induced Crystallization Kinetics During Inje
The Hierarchical Structure of Water-Assisted Injection Molded High Density Polyethylene: Small Angle
Morphological comparison of isotactic polypropylene molded by water-assisted and conventional inject
beta-transcrystallinity developed from the novel ringed nuclei in the glass fiber/isotactic polyprop
Negative effect of stretching on the development of beta-phase in beta-nucleated isotactic polypropy
Gas-assisted Injection Molded Polypropylene/Glass Fiber Composite: Foaming Structure and Tensile Str
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