Coupled heat conduction and multiphase change problem accounting for thermal contact resistance

Daniel Weisz-Patrault (1)

1 LMS - Laboratoire de mécanique des solides

In this paper, heat conduction coupled with multiphase changes are considered in a cylindrical multilayer composite accounting for thermal contact resistance depending on contact pressures and roughness parameters. A numerical simulation is proposed using both analytical developments and numerical computations. The presented modeling strategy relies on an algorithm that alternates between heat conduction accounting for volumetric heat sources and a multi-phase change model based on non-isothermal Avrami's equation using the isokinetic assumption. Applications to coiling process (winding of a steel strip on itself) are considered. Indeed, phase changes determine the microstructure of the final material and are responsible for residual stresses that create flatness defects. A Finite Element modeling is used for validating the presented solution and numerical results are presented and discussed.

Mots clés: Multiphase changes; Heat conduction; Analytical solution; Coiling process

Domaines: Mécanique des solides [physics.class-ph]

Daniel Weisz-Patrault. Coupled heat conduction and multiphase change problem accounting for thermal contact resistance. International Journal of Heat and Mass Transfer, 2017, 104, pp.595-606. ⟨10.1016/j.ijheatmasstransfer.2016.08.091⟩. ⟨hal-01365342⟩