Thermal-rheology effect and temperature field of engineering polymers

Abstract

The formation and evolution laws of the defect temperature field, heat dissipation in the process of defect evolution were studied. On the basis, the formation and evolution laws of the defect temperature field were investigated, the interaction among defects in the process of defect evolution was carried out. The numerical simulation of the temperature field of ABS was made. The results show that the process of defect evolution is one of energy dissipation, in which the defect temperature field forms due to that its heat dissipation possesses fractal property and its fractal dimension not only relates to the interaction among the defects, but also is the function of time, this incarnates the efficiency of coordinated actions of striding over the different gradations in the process of defect evolution and among gradations. The increase of the local temperature with the increase of deformation-induced heating effect in ABS is obvious. Moreover, the shape of plastic zone and inner heat source density function has big effect on the temperature field.

Keywords

temperature field / heat dissipation / plastic zone / numerical simulation