20.500.12556/RUL-158598 A new hybrid local radial basis function collocation method for 2.5D thermo-mechanical modelling of continuous casting of steel This study presents a new strong-form meshless method to solve the thermo-mechanical problem of the solidification process in the continuous casting of steel. A two-dimensional slice that travels in the casting direction is modelled in the Lagrangian system. The newly developed mechanical model is one-way coupled to the thermal model, where the heat flux due to the mould, sprays, rolls and radiation are imposed to solve heat transfer in the strand. The resulting temperature and metallostatic pressure govern the Norton-Hoff visco-plastic model used for computing shrinkage of the solid shell and induced residual stresses. The results are used to estimate critical areas susceptible to hot-tearing formation. The mechanical model uses a generalised plane strain assumption that includes linear strains perpendicular to the slice and enables the computation of the straightening of the strand. The thermo-mechanical model is spatially discretised with a local radial basis function collocation method (LRBFCM). The mechanical part includes a new hybrid method that combines LRBFCM with finite differences for increased stability. The presented work shows how the developed model is used to assess the impact of casting velocity on the solid shell shrinkage and the probability of hot-tearing occurrence in the continuous casting of square billets. continuous casting of steel thermo-mechanics strong form meshless methods kontinuirano ulivanje jekla termo-mehanika močna formulacija brezmrežne metode true false true Angleški jezik Slovenski jezik Članek v reviji 2024-06-17 08:25:36 2024-06-17 08:25:43 2025-04-10 15:08:17 0000-00-00 00:00:00 2024 0 0 6 str. Vol. 2766, art. 012201 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 519.62:621.74 1742-6596 10.1088/1742-6596/2766/1/012201 199016963 197654787 Vuga...-A_new_hybrid_local_radial_basis_function_collocation_method_for_2.5D_thermo-mechanical_modelling_of_continuous_casting_of_steel.pdf Vuga...-A_new_hybrid_local_radial_basis_function_collocation_method_for_2.5D_thermo-mechanical_modelling_of_continuous_casting_of_steel.pdf 1 7649A023D359D790DA3DEF41DEE99B74 09d19e3fee5a3e2f604767a224a79d382b334f590033b4e1067c41b768a1dad9 c8085954-2c72-11ef-b3fb-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186278 https://iopscience.iop.org/article/10.1088/1742-6596/2766/1/012201 1 6fb8f038-2c72-11ef-b3fb-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186275 Fakulteta za strojništvo 0 0 0