J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 311-315
The dynamic response of Copper 101 under high-rate loadingA.M. Bragov1, A.K. Lomunov1, A.V. Abramov1, A.Yu. Konstantinov1, I.V. Sergeichev1, C. Braithwaite2, W.G. Proud2, P.D. Church3, I.G. Cullis3 and P. Gould4
1 Institute of Mechanics, State University, Gagarin Ave., 23/6 Nizhny Novgorod, Russia
2 Cavendish Laboratory, J.J. Thomson Ave., Madingley Rd., Cambridge CB3 0HE, UK
3 QinetiQ, Fort Halstead, Sevenoaks, Kent TN14 7BP, UK
4 QinetiQ, Ively Road, Farnborough, UK
Published online: 26 July 2006
The initial results of an investigation into the dynamic behavior of copper C101 are presented. This study involved several experimental technicques; quasi-static, compressive Split Hopkinson Pressure Bar (SHPB), a modified Taylor test and a direct impact method. From these studies dynamic and static stress-strain curves were obtained. Numerical simulation was applied to the system using a variety plasticity models in a LS-DYNA environment. The results of the models were valicated by comparison with two selected experiments. Overall the study shows the essential need for cross-comparison of the materials parameters used and how the different techniuques yeild these fundamental parameters in differing ways.
© EDP Sciences 2006