| 塑料注射成型结晶过程三维数值模拟 |
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| 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(2):173-179. |
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| 作者姓名： | 严波 李阳 孔啸 赵朋 李德群 |
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| 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; |
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| 基金项目： | 国家自然科学基金(基金号50675080、50875095)资助项目 |
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| 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...
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| 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 |
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| 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(2):173-179. |
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| Authors: | YAN Bo LI Yang KONG Xiao ZHAO Peng LI Dequn |
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| Institution: | 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) |
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| 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... |
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| Keywords: | Injection molding Shear stress-induced Crystallization kinetics Crystallinity distribution Latent heat |
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