THERMO MECHANICAL NUMERICAL ANALYSIS OF AN EXPERIMENTAL TEST DURING SOLIDIFICATION

D. CELENTANO; S. OLLER; E. OÑATE; P. DARDATI

Conferencia; EuroTherm Seminarr N. 30. Heat Transfer in Phase-Change Processes; 1992

The numerical analysis of an experimental test during solidification is performed. For this purpose, a thermo-plastic constitutive model to simulate the solidification process in casting problems was developed. The model, formulated in a macroscopically point of view, takes in to account the different thermal and mechanical effects that occur in the solid, mushy and liquid phases. A staggered scheme is employed to salve the highly non-linear coupled energy and equilibrium finite element equations. Furthermore the variations in thermal and mechanical boundary conditions are also discussed.