| Numéro |
J. Phys. IV France
Volume 110, September 2003
|
|
|---|---|---|
| Page(s) | 263 - 268 | |
| DOI | https://doi.org/10.1051/jp4:20020704 | |
J. Phys. IV France 110 (2003) 263
DOI: 10.1051/jp4:20020704
Dynamic upsetting and failure of metal cylinders: Experiments and analysis
D.D. Radford1, S.M. Walley1, P. Church2 and J.E. Field11 PCS Group, Cavendish Laboratory, Madingley Road, Cambridge CB3 OHE, U.K.
2 QinetiQ Fort Halstead, Sevenoaks, Kent TN14 7BP, U.K.
Abstract
By giving careful thought to the design of the force transducer, a dropweight machine bas been constructed capable of giving
mechanical data of comparable accuracy to a split Hopkinson pressure bar. This has proved particularly useful in deforming
large cylinders of hard metals to large plastic strains at high strain rates (ca. 500 to 1000 s
-1). In conjunction with high-speed photography and finite element analysis, this device is proving to be a valuable stringent
validation test for advanced constitutive models.
© EDP Sciences 2003