Anisotropic constitutive model and FE simulation of the sintering process of slip cast traditional porcelain

Bahram Sarbandi (1) , Jacques Besson (1) , Michel Boussuge (1) , David Ryckelynck (1)

1 CDM - Centre des Matériaux

Slip cast ceramic components undergo both sintering shrinkage and creep deformation caused by gravity during the firing cycle. In addition sintering may be anisotropic due to the development of preferential directions during slip casting. Both phenomena induce complex deformations of parts which make the design of casting molds difficult. To help solving this problem, anisotropic constitutive equations are proposed to represent the behavior of the ceramic compacts during sintering. The model parameters are identified using tests allowing to characterize both sintering and creep. The model was implemented in a finite element software and used to simulate the deformation of a traditional ceramic object during sintering

Mots clés: anisotropic constitutive model; ceramics; simulation; sintering; slipcast

Domaines: Matériaux

Bahram Sarbandi, Jacques Besson, Michel Boussuge, David Ryckelynck. Anisotropic constitutive model and FE simulation of the sintering process of slip cast traditional porcelain. Proceedings of the 10th International Conference on Numerical Methods in Industrial Forming Processes, Jun 2010, Pohang, South Korea. pp.689-696, ⟨10.1063/1.3457622⟩. ⟨hal-00523265⟩