Setting a proper mathematical model including viscous heating and thermal convection effect in energy balance, the thermo-mechanical history during mold filling process of amorphous polystyrene melt is precisely and rapidly estimated by highly improved numerical methods and computational technique.
The relationship of the non-homogeneous molecular orientation distribution to the estimated stress field during vitrification is analyzed by rheo-optical rule.
From the results, it is shown that the development of frozen-in layer thickness and molecular orientation, melt front advancement can be estimated and particularly, the viscous heating effect for the non-homogeniety is important.
