The article addresses the modeling of process manufacturing a large-sized shell, given thermomechanical behavior and viscoelasticity composite mandrel. results experimental identification parameters examined material are presented. A numerical algorithm for adapting data ANSYS Mechanical APDL finite element analysis package is proposed. Prony series expansion relaxation kernel used as model des...

In this paper, an upper bound approach is used to analyze the tube extrusion process through rotating conical dies with large mandrel radius. The material under deformation in the die and inside the container is divided to four deformation zones. A velocity field for each deformation zone is developed to evaluate the internal powers and the powers dissipated on all frictional and velocity disco...

In this study, an electrochemical-thermal coupled model was developed to investigate the electrical and thermal behaviors of commercial NCR18650b Li-ion cell during three different discharge rates. The 1-dimensional electrochemical consists a positive electrode, electrolyte, negative electrode employs related mass charge transfer equations for both solid liquid phases predicting cell's voltage ...

The demand for more efficient manufacturing processes has been increasing in the last few years. The cold forging process is presented as a possible solution, because it allows the production of parts with a good surface finish and with good mechanical properties. Nevertheless, the cold forming sequence design is very empirical and it is based on the designer experience. The computational model...