| Numéro |
J. Phys. IV France
Volume 10, Numéro PR9, September 2000
EURODYMAT 2000 - 6th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
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|---|---|---|
| Page(s) | Pr9-835 - Pr9-839 | |
| DOI | https://doi.org/10.1051/jp4:20009138 | |
EURODYMAT 2000 - 6th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
J. Phys. IV France 10 (2000) Pr9-835-Pr9-839
DOI: 10.1051/jp4:20009138
1 School of Engineering, Oxford Brookes University, Gipsy Lane Campus, Headington, Oxford OX3 OBP, U.K.
2 Department of Engineering Science, University of Oxford, Oxford, U.K.
© EDP Sciences 2000
J. Phys. IV France 10 (2000) Pr9-835-Pr9-839
DOI: 10.1051/jp4:20009138
Photographic study of surface deformation during high-strain-rate torsion testing of high strength steels
N.A. Fellows1 and J. Harding21 School of Engineering, Oxford Brookes University, Gipsy Lane Campus, Headington, Oxford OX3 OBP, U.K.
2 Department of Engineering Science, University of Oxford, Oxford, U.K.
Abstract
A photographic grid technique has been used to determine the specimen shear strain in Hopkinson-bar torsion tests on high strength steel specimens at a shear strain rate of ~ 1000/s. Shear strains at fracture were of the order of 5% and no localisation of plastic flow was observed immediately preceding fracture. The results are compared with those obtained previously for a lower strength RHA steel where the local shear strain immediately preceding fracture was of the order of 500%.
© EDP Sciences 2000