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Thermo‐mechanical finite element model of casting systems
Author(s) -
Song R.,
Dhatt G.,
Cheikh A. Ben
Publication year - 1990
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620300403
Subject(s) - finite element method , viscoplasticity , latent heat , materials science , casting , thermal conduction , cooling curve , enthalpy , mechanics , heat transfer , heat flux , mechanical engineering , thermodynamics , metallurgy , composite material , engineering , constitutive equation , physics
Abstract A coupled finite element model is developed to simulate the metal casting process. We present a new method for capturing the solidification zone and obtaining the corresponding rate of phase change. The latent energy release is predicted by the heat conduction rate and introduced by following the enthalpy‐temperature curve. The influence of mould‐metal contact is considered in calculating the heat flux through the mould‐metal interface. A viscoplastic model is employed to predict the gap opening and evolution of plastification. Four examples are presented to demonstrate certain numerical aspects and the capability of the model for industrial applications.