Finite Element Modeling of the Thermomechanical Behavior of Polyethylene

Abstract

This article presents a finite element study based on tests of characterizations to find the properties of the materials studied, the injection-blowing technique, chosen in this case, is characterized by the bi-axial of the material, and one benefits from the orientation of the macromolecules in the directions of use of the material. The objective of this work is to link all the mechanical and thermal parameters during the treatment of molten polymer materials subjected to high-stress rates that can lead to significant temperature increases due to viscous heating in the order of 200�C. Predicting the temperature range is essential for good temperature control and is a major factor in determining the quality of the final product. This forces us to choose an adequate law of behavior, capable of translating the mechanical evolution under the thermal effect while explaining the rheological response of the viscoelastic metal. So this process is usually accompanied by geometric defects resulting from the original residual stresses cooling speed and the process itself. In the packaging of food products, as in this case, the bottles require to have a stable filling and a certain storage capacity.