2026-04-13T04:02:07Zhttps://recercat.cat/oai/request

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

00925njm 22002777a 4500 dc Brown, Arthur A. author Kostka, Timothy D. author Antoun, Bonnie R. author Chiesa, Michael L. author Bammann, Douglas J. author Pitts, Stephanie A. author Margolis, Stephen B. author O'Connor, Devin author Yang, Nancy Y.C. author 2011 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. 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 Validation of thermal-mechanical modeling of stainless steel forgings