Volume 2, 2009DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|1375 - 1381
|15 September 2009
Parameters determination of constitutive models for a low alloy structural steel S355K2G3J. Mespoulet, A. Lachaud and P. Hereil
Thiot Ingenierie, La Croix-Blanche, Saint-Michel Loubéjou, 46130 Bretenoux, France
Published online: 15 September 2009
The dynamic behaviour of a low alloy structural steel has been investigated under different experimental conditions in a strain rate range from 102 s−1 to 5.106 s−1. Taylor tests, hat-shape tests and dynamic tensile tests have been simulated and compared to experiments presented in a companion paper. Simulations have been performed with two constitutive models and two non-linear dynamic codes LS-DYNA™ and AUTODYN™. Results show discrepancies between the two codes and two models which emphasis the need of validation of constitutive models before simulations of industrial applications.
© EDP Sciences 2009