Comparison of different designs of bottom linings with dry joints

Alain Gasser (1) , Amna Rekik (2) , Eric Blond (2) , K. Andreev (3)

1 F2ME
2 PRISME - Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes, Mécanique et Energétique
3 Tata Steel

Many bottom linings of refractory structures used in steel making industry are made of masonries with or without mortar. Several designs are possible: parallel, fish bone or radial. To compare the influence of these designs on the maximum stresses in the steel shell, the masonry with dry joints was modelled by a homogeneous equivalent material that takes into account the possibility of joint closure. The thermo-mechanical properties of this equivalent material were determined using a periodic homogenization method. They depend on the joint states (open or closed in the two directions). The use of this equivalent material for the bottom lining of a steel ladle has shown that the design that minimizes the stresses in the steel shell is the radial design.

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]

Alain Gasser, Amna Rekik, Eric Blond, K. Andreev. Comparison of different designs of bottom linings with dry joints. UNITECR'11, Oct 2011, Kyoto, Japan. pp.CD-Rom. ⟨hal-00649600⟩