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Description
This study investigates the stress and strain evolution in slabs in a twin-slab caster, with focus on the effect of roller misalignment. A finite element model (FEM) was used to simulate a small section of the slab as it passes through the secondary cooling zone. The model accounts for thermal gradients and mechanical interactions with supporting rollers. The results show that roller misalignment increases the strain level in the slab. The induced deformation propagates downstream along the casting direction and leads to a cumulative effect. Even small misalignments can influence the stress–strain evolution beyond their local region. Based on the findings, guidelines are proposed to reduce the impact of roller misalignment and improve slab quality.