COMPUTATION PROCEDURE FOR THE TEMPERATURE IN HOT GLASS - APPLICATION TO THE FINITE-ELEMENT SIMULATION OF HOLLOW GLASS-FORMING

A new incremental procedure is developed for the thermal analysis in 3 D glass products considering the one-dimensional analytical solutions for a semi-infinite glass wall. When coupled to a code being capable o f computing large mechanical deformations, this allows to analyze effi ciently the glass flow during the pressing, self-deformation and blowi ng processes. The forming of a reference tumbler is analyzed via finit e element simulations. For each forming step, the temperature distribu tion is calculated from the pressing parameters; pertinent results are found for this first application.