  In this work we briefly present a thermomechanical model that could serve as
starting point for industrial applications. We address the non-linearity due to
temperature dependence of material properties and heterogeneity due to presence
of different materials. Finally a numerical example related to the simplified
geometry of blast furnace hearth walls is shown with the aim of assessing the
feasibility of the modelling framework. Keywords: nonlinear thermomechanical
model, finite element method, heterogeneous material, blast furnace.
