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塑料注射成型结晶过程三维数值模拟
引用本文:严波,李阳,孔啸,赵朋,李德群. 塑料注射成型结晶过程三维数值模拟[J]. 高分子学报, 2011, 0(2): 173-179. DOI: 10.3724/SP.J.1105.2011.09432
作者姓名:严波  李阳  孔啸  赵朋  李德群
作者单位:上海交通大学模具CAD国家工程研究中心;华中科技大学材料成形与模具技术国家重点实验室;
基金项目:国家自然科学基金(基金号50675080、50875095)资助项目
摘    要:采用GLS(Galerkin/least-squares)、SUPG(Streamline upwind/Petrov-Galerkin)、GGLS(Galerkin gradient least-squares)等方法对塑料注射成型过程进行三维数值模拟以获取速度、压力与温度场,基于剪切应力引起分子链取向并导致平衡熔点...

关 键 词:注射成型  剪切诱导  结晶动力学  结晶分布  潜热

THREE DIMENSIONAL NUMERICAL SIMULATION OF POLYMER CRYSTALLIZATION DURING PLASTIC INJECTION MOLDING
YAN Bo,LI Yang,KONG Xiao,ZHAO Peng,LI Dequn. THREE DIMENSIONAL NUMERICAL SIMULATION OF POLYMER CRYSTALLIZATION DURING PLASTIC INJECTION MOLDING[J]. Acta Polymerica Sinica, 2011, 0(2): 173-179. DOI: 10.3724/SP.J.1105.2011.09432
Authors:YAN Bo  LI Yang  KONG Xiao  ZHAO Peng  LI Dequn
Affiliation:YAN Bo2,LI Yang1,KONG Xiao2,ZHAO Peng1,LI Dequn1(1 State Key Laboratory of Material Processing and Die & Mould Technology,Huazhong University of Science and Technology,Wuhan 430074)(2 National Engineering Research Center of Die & Mold CAD,Shanghai Jiao Tong University,Shanghai 200030)
Abstract:The crystallinity distribution of polymers has a significant dependence on injection processing and determines the part properties.Speed,pressure and temperature fields are obtained from 3D numerical simulation by employing GLS(Galerkin/least-squares),SUPG(Streamline upwind/Petrov-Galerkin) and GGLS(Galerkin gradient least-squares) methods.The non-isothermal shear stress-induced crystallization kinetics models are proposed based on the hypothesis that shear stress induced orientation of polymer chains incre...
Keywords:Injection molding  Shear stress-induced  Crystallization kinetics  Crystallinity distribution  Latent heat  
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