J. Phys. IV France 10 (2000) Pr9-353-Pr9-358
Study of dynamic plastic deformation of a nitrogen alloyed steel using single and symmetric Taylor testingH. Couque1, A. Lichtenberger2, E. Lach2 and B. Salesse1
1 Giat Industries, DSAM/DT/BTS, 7 route de Guerry, 18023 Bourges, France
2 ISL, 5 rue du Général Cassagnou, 68301 Saint-Louis, France
The present investigation examines the dynamic plastic deformation of a moderate-strength high-ductility austenitic steel at strain rates ranging from 103 to 104 s-1 using Taylor tests. Single and symmetric Taylor testing was employed to generate large plastic deformation under different stress states. The dynamic plastic deformation was analyzed through numerical simulations and scanning electron microscope observations of the Taylor specimens. The simulations were conducted with a Johnson-Cook constitutive model calibrated up to 300 °C and 5 x 103 s-1.
© EDP Sciences 2000