Eur. Phys. J. AP 4, 257-267 (1998)
https://doi.org/10.1051/epjap:1998269

Numerical simulation of ductile fracture during high strain rate deformation

¹ Department of Mechanical Engineering, University of Waterloo Waterloo, Ontario, Canada N2L 3G1
² SNC Industrial Technologies Ltd. 5 Montée des Arsenaux Le Gardeur, Québec, Canada J5Z 2P4

Corresponding author: worswick@lagavulin.uwaterloo.ca

Received: 9 April 1998
Accepted: 10 August 1998
Published online: 15 December 1998

Abstract

A numerical integration scheme is presented for integration of the pressure-sensitive yield criterion due to Gurson, suitable for explicit dynamic finite element calculations. This scheme utilizes a sub-increment approach to Mayntain stability for the large strain increments and intense triaxiality that can occur under high strain rate loading. A number of validation problems are presented after which two laboratory-scale high strain experiments are simulated. The integration scheme is shown to be stable and to capture the onset of tensile fracture under high strain rate loading conditions.