Finite Element Simulation of Steel Solidification under High Temperature. Issue 1 (December 2013)

• Record Type: Journal Article
• Authors: Moj, Lukas; Ricken, Tim; Göhler, Klaus
• Is Part Of: Proceedings in applied mathematics and mechanics. Volume 13:Issue 1(2013)
• Page Start: 191
• Page End: 192
• Publication Date: 2013-12
• Subjects: Applied mathematics -- Periodicals; Engineering mathematics -- Periodicals; Mathematical physics -- Periodicals; 519
• DOI: 10.1002/pamm.201310091
• Languages: English
• ISSNs: 1617-7061

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Finite element simulation of hot working of steel has gained significant importance in steel industries. The aim of describing such processes using the finite element method is to predict phenomena like shrinkage during solidification. Due to this thermo‐mechanical behaviour residual stresses appear, which cause cracks and the final steel slab loses its required properties as a result. We propose a two‐phase incompressible model based on the Theory of Porous Media (TPM) for a numerical description of steelmaking processes. A thermo‐mechanical coupling is required to model a high temperature‐dependency. In order to consider thermal expansion of solid, a multiplicative decomposition of the deformation gradient into a mechanical and a thermal part has been applied. The Von Mises J₂ plasticity with isotropic hardening criterion has been selected for the solid‐phase of the model. Representative numerical examples, as well as the influence of single material parameters on the model will be shown. (© 2013 Wiley‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)</p> </abstract>