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ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

NUMERICAL SIMULATION OF CASTING PROCESSES

Get access (open in a dialog) DOI: 10.1615/IHTC8.3660
pages 459-464

Sinopsis

Mathematical models simulating heat flow and thermal stress formation in castings and molds during solidification and cooling have been developed.
The governing differential equation of heat flow was discretized using finite difference techniques and the resulting algebraic equations were solved by an alternating direction implicit method. Latent heat release, contact thermal resistances and gap formation were simulated. A finite pouring time was considered. Thermally dependent physical properties were allowed for in the computations. Temperature fields and solidification predicted by the model were compared with experimental data and good agreement was obtained.
The thermal stresses were calculated by finite element techniques using 8 noded isoparametric quadrilateral elements. Stress distributions in the mold were obtained. The effects of pouring techniques on the stress distributions were investigated.