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

L.C. Forde; S.M. Walley; M. Peyton-Jones; W.G. Proud; I.G. Cullis; P.D. Church

doi:doi:10.1051/dymat/2009175

All issues

Volume 2 (2009)

10.1051/dymat/2009175

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)		1245 - 1250
Section		Constitutive Modeling
DOI		https://doi.org/10.1051/dymat/2009175
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

Abstract
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.