Comparison of numerical simulation models for predicting temperature in solidification analysis with reference to air gap formation
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in: International journal of cast metals research, Jahrgang 17.2004, Nr. 5, 31.12.2004, S. 295-310.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Comparison of numerical simulation models for predicting temperature in solidification analysis with reference to air gap formation
AU - Kron, J.
AU - Bellet, M.
AU - Ludwig, Andreas
AU - Pustal, Björn
AU - Wendt, J.
AU - Fredriksson, Hasse
PY - 2004/12/31
Y1 - 2004/12/31
N2 - As a result of its influence on heat transfer between cast part and mould, air gap formation is an important problem for many casting processes. The general explanation for gap formation is that, as a result of stresses and distortions that are created from inhomogeneous cooling, shrinkage of the casting and expansion of the mould occur. In this paper, different thermomechanical approaches are applied to a well defined casting process using three commercial and one inhouse codes and their predictions are compared with experimental findings. The experimental data were obtained from the solidification and subsequent cooling of cylindrical castings of eutectic Al–13%Si and ternary Al–7%Si–0.3%Mg alloys. Based on these findings, the major differences between the predictions of the models and the actual formation of the air gap are discussed.
AB - As a result of its influence on heat transfer between cast part and mould, air gap formation is an important problem for many casting processes. The general explanation for gap formation is that, as a result of stresses and distortions that are created from inhomogeneous cooling, shrinkage of the casting and expansion of the mould occur. In this paper, different thermomechanical approaches are applied to a well defined casting process using three commercial and one inhouse codes and their predictions are compared with experimental findings. The experimental data were obtained from the solidification and subsequent cooling of cylindrical castings of eutectic Al–13%Si and ternary Al–7%Si–0.3%Mg alloys. Based on these findings, the major differences between the predictions of the models and the actual formation of the air gap are discussed.
KW - Air gap formation
KW - Benchmark exercise
KW - Coupled problems
KW - Finite elements
KW - Numerical modelling
KW - Solidification
KW - Stress-strain analysis
UR - http://www.scopus.com/inward/record.url?scp=10844286305&partnerID=8YFLogxK
U2 - 10.1179/136404604225020669
DO - 10.1179/136404604225020669
M3 - Article
VL - 17.2004
SP - 295
EP - 310
JO - International journal of cast metals research
JF - International journal of cast metals research
SN - 0953-4962
IS - 5
ER -