Skip to Main content Skip to Navigation
Journal articles

Thermomechanics of the cooling stage in casting processes: Three-dimensional finite element analysis and experimental validation

Abstract : A thermomechanical three-dimensional (3-D) finite element analysis of solidification is presented. The heat transfer model is based on a multidomain analysis accounting for noncoincident meshes for the cast part and the different mold components. In each subdomain, a preconditioned conjugate gradient solver is used. The mechanical analysis assumes the mold is rigid. A thermoelastic-viscoplastic rheological model is used to compute the constrained shrinkage of the part, resulting in an effective local air gap width computation. At each time increment, a weak coupling of the heat transfer and mechanical analyses is performed. Comparisons of experimental measurements and model predictions are given in the case of a hollow cylindrical aluminum alloy part, showing a good quantitative agreement. An application to an industrial aluminum casting is presented, illustrating the practical interest of thermomechanical computations in solidification analysis.
Document type :
Journal articles
Complete list of metadatas

https://hal-mines-paristech.archives-ouvertes.fr/hal-01420915
Contributor : Magalie Prudon <>
Submitted on : Wednesday, December 21, 2016 - 11:24:40 AM
Last modification on : Thursday, September 24, 2020 - 5:22:56 PM

Links full text

Identifiers

Citation

Michel Bellet, Florent Decultieux, Mamar Ménaï, François Bay, Christophe Levaillant, et al.. Thermomechanics of the cooling stage in casting processes: Three-dimensional finite element analysis and experimental validation. Metallurgical and Materials Transactions B, Springer Verlag, 1996, 27 (1), pp.81 - 99. ⟨10.1007/BF02915080⟩. ⟨hal-01420915⟩

Share

Metrics

Record views

426