2026-04-17T05:43:21Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1841742025-07-16T22:34:15Zcom_2072_1033col_2072_452949

Validation of thermal-mechanical modeling of stainless steel forgings Brown, Arthur A. Kostka, Timothy D. Antoun, Bonnie R. Chiesa, Michael L. Bammann, Douglas J. Pitts, Stephanie A. Margolis, Stephen B. O'Connor, Devin Yang, Nancy Y.C. Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits Finite element method Plasticity -- Mathematical models Plasticity Recrystallization, Forging, Thermal-Mechanical, Validation, Plasticity Elements finits, Mètode dels Plasticitat -- Models matemàtics Plasticitat A constitutive model for recrystallization has been developed within the framework of an existing dislocation-based rate and temperature-dependent plasticity model. The theory has been implemented and tested in a finite element code. Material parameters were fit to data from monotonic compression tests on 304L steel for a wide range of temperatures and strain rates. The model is then validated by using the same parameter set in predictive thermal-mechanical simulations of experiments in which wedge forgings were produced at elevated temperatures. Model predictions of the final yield strengths compare well to the experimental results. 2011 Conference report Open Access CIMNE