Parameters determination of constitutive models for a low alloy structural steel S355K2G3

J. Mespoulet; A. Lachaud; P. Hereil

doi:doi:10.1051/dymat/2009194

All issues

Volume 2 (2009)

10.1051/dymat/2009194

Abstract

Issue		DYMAT 2009 Volume 2, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		1375 - 1381
Section		Constitutive Modeling
DOI		https://doi.org/10.1051/dymat/2009194
Published online		15 September 2009

DYMAT 2009 (2009) 1375-1381
DOI: 10.1051/dymat/2009194

Parameters determination of constitutive models for a low alloy structural steel S355K2G3

J. Mespoulet, A. Lachaud and P. Hereil

Thiot Ingenierie, La Croix-Blanche, Saint-Michel Loubéjou, 46130 Bretenoux, France

Published online: 15 September 2009

Abstract
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.