Numerical investigation of viscoelastic flow induced crystallization in polymer processing
The investigation of viscoelastic flow induced crystallization is of great engineering significance in polymer processing like extrusion,injection and blow molding.In the study,the behavior of viscoelastic flow induced crystallization of semi-crystalline polymers is investigated by using finite element-finite difference method.The Schneiders approach is introduced to describe the evolution of crystallization kinetic process.The numerical model of three-dimensional flow induced crystallization of polymer melts obeying Phan-Thien and Tanner constitutive model is established.A penalty method is introduced to solve the nonlinear governing equations with a decoupled algorithm.The effect of flow state on the crystallization behavior is investigated.The crystalline distribution within the flow channel is obtained based on the proposed mathematical model and numerical method.
Viscoelastic Crystallization Polymer Simulation
Yue Mu Guoqun Zhao Xianghong Wu Guiwei Dong
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education),Shandong University,Jinan,Shandong 250061,P.R.China;Engineering Research Center for Mould & Die Technologies,Shandong University,Jinan,Shandong 250061,P.R.China
国际会议
沈阳
英文
931-936
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）