DYMAT 2009
Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1245 - 1250
Section Constitutive Modeling
Published online 15 September 2009
DYMAT 2009 (2009) 1245-1250
DOI: 10.1051/dymat/2009175

The use of symmetric Taylor impact to validate constitutive models for an fcc metal (copper) and a bcc alloy (RHA steel)

L.C. Forde1, S.M. Walley1, M. Peyton-Jones1, W.G. Proud1, I.G. Cullis2 and P.D. Church2

1  SMF Fracture and Shock Physics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, UK
2  QinetiQ plc, Fort Halstead, Sevenoaks, Kent TN14 7BP, UK

Published online: 15 September 2009

Symmetric Taylor impacts of copper and RHA rods were performed using a light gas gun. High-speed photography was used in back illumination to obtain silhouette sequences of the deforming rods. Predictions were then made of the rod profiles using an Armstrong-Zerilli path-dependent model within a Lagrangian finite element code. These predictions were then compared with the experiments and excellent agreement found for both materials.

© EDP Sciences 2009