Elastic-Plastic Properties of Iron
- 1 February 1963
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 34 (2) , 364-371
- https://doi.org/10.1063/1.1702614
Abstract
Smooth bore cannons were used to produce plane collisions between plates of Armco iron. Projectile velocities ranged from 60 to 400 m/sec. Time resolved measurements of the target free-surface velocities indicate that the dynamic yielding process is time dependent on a submicrosecond time scale. The shape of the Hugoniot curve in the pressure-volume plane up to 80 kbars shows that true hydrostatic equilibrium has not yet been established behind the elastic wave. On the other hand the substantially constant free-surface velocities behind the plastic front indicate that the material cannot be far from equilibrium after a short time. Some data on the rarefaction sound speed in the high pressure region are interpreted to imply a value very near 6 km/sec.This publication has 9 references indexed in Scilit:
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