High impact deformation of metal cylinders at elevated temperatures
- 1 May 1982
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (5) , 3566-3575
- https://doi.org/10.1063/1.331136
Abstract
We have used a ’’reverse gun’’ that fires a ceramic plate at a preheated metal target to study the dependence of flow stress on temperature. Impact velocity versus Lf /L0 isotherms have been determined for Al, two types of Cu, 4340 steel, and Ta at 295, 730, and 1235 K, and for U at 295 and 725 K. A modified Steinberg–Guinan constitutive model and a Grüneisen equation of state were used to obtain hydrodynamic code simulations of the deformation process. A strong temperature dependence of the length ratio was clearly evident for all materials.This publication has 3 references indexed in Scilit:
- A constitutive model for metals applicable at high-strain rateJournal of Applied Physics, 1980
- Impact of cylinders on a rigid boundaryJournal of Applied Physics, 1973
- The use of flat-ended projectiles for determining dynamic yield stress I. Theoretical considerationsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1948