Numerical simulation of the effect of adiabatic temperature increase in martensitic transformation of austenitic steels
This work presents a constitutive model for metastable austenitic steels exhibiting Strain Induced Martensitic Transformation (SIMT). Based on the description of the kinetics of phase transformation proposed by Olson and Cohen , and later generalized to 3D by Stringfellow et al.  and Papatriantafillou et al. , this model includes the effect of temperature increase on the kinetics of SIMT and on the thermal softening of the phases. This allows capturing relevant phenomena exhibited by metastable austenitic steels when subjected to plastic deformation at high strain rates. A systematic procedure for the identification of the constitutive parameters has been proposed. The predictions of the constitutive description are compared with experiments for the austenitic steel AISI 304 provided by Rodríguez-Martínez et al. . Good correlation between experiments and modelling are achieved in terms of macroscopic strain-stress curves and volume fraction of martensite formed during straining.
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Numerical Simulation of the effect adiabatic temperature increase in martensitic transformation of austenitic steels Conférence invitéeZAERA, Ramon; CASADO, Alvaro; RODRIGUEZ-MARTINEZ, José A.; RUSINEK, Alexis; PESCI, Raphaël; FERNANDEZ-SAEZ, José (2011)The predictions of the constitutive model agree with experimental results in terms of macroscopy stress-strain curves and volume fraction of martensite formed during loading
A constitutive model for analyzing martensite formation in austenitic steels deforming at high strain rates Article dans une revue avec comité de lectureZAERA, Ramon; RODRIGUEZ-MARTINEZ, J. A.; CASADO, Ana Maria; FERNANDEZ-SAEZ, José; RUSINEK, Alexis; PESCI, Raphaël (Elsevier, 2012)This study presents a constitutive model for steels exhibiting SIMT, based on previous seminal works, and the corresponding methodology to estimate their parameters. The model includes temperature effects in the phase ...
Thermo-mechanical behaviour of TRIP 1000 steel sheets subjected to low velocity perforation by conical projectiles at different temperatures Article dans une revue avec comité de lectureRODRIGUEZ MARTINEZ, José Antonio; PESCI, Raphaël; RUSINEK, Alexis; ARIAS, Angel; ZAERA, Ramon; PEDROCHE, David Arias (Elsevier, 2012)This paper presents and analyzes the behaviour of TRIP 1000 steel sheets subjected to low velocity perforation by conical projectiles. The relevance of this material resides in the potential transformation of retained ...
Experimental and numerical analysis on the martensitic transformation in AISI 304 steel sheets subjected to perforation by conical and hemispherical projectiles Article dans une revue avec comité de lectureRODRIGUEZ MARTINEZ, José Antonio; RUSINEK, Alexis; PESCI, Raphaël; ZAERA, Ramon (Elsevier, 2013)In this work, an experimental and numerical analysis of the martensitic transformation in AISI 304 steel sheets subjected to perforation by conical and hemispherical projectiles is conducted. Experiments are performed using ...
Experimental characterisation and modelling of the thermo-viscoplastic behaviour of steel AISI 304 within wide ranges of strain rate at room temperature Article dans une revue avec comité de lectureRUSINEK, Alexis; RODRIGUEZ-MARTINEZ, José A.; PESCI, Raphaël; CAPELLE, Julien (Polish Society of theoretical and applied Mechanics, 2010)In this investigation, thermo-viscoplastic behaviour of austenitic steel AISI 304 has been characterised in tension under wide ranges of strain rate at room temperature. This metal possesses an elevated strain hardening ...