Stress-Strain Curves for Oxygen-Free High Conductivity Copper at Shear Strain Rates of up to 103s-1
- 1 June 1970
- journal article
- other
- Published by SAGE Publications in Proceedings of the Institution of Mechanical Engineers
- Vol. 185 (1) , 1149-1158
- https://doi.org/10.1243/pime_proc_1970_185_125_02
Abstract
Shear stress-shear strain curves for o.f.h.c. copper at room temperature have been obtained at constant shear strain rates in the range 1 to 103s-1, using thin walled tubular specimens in a flywheel type torsion testing machine. Results show that, for a given value of strain, the stress decreases when the rate of strain is increased. Moreover, the elastic portion of the stress-strain curve tends to disappear as the rate of strain is increased. It is postulated that these effects are due to the formation of adiabatic shear bands in the material when the given rate of strain is impressed rapidly enough. A special feature of the design of the testing machine used is the rapid application of the chosen strain rate.This publication has 14 references indexed in Scilit:
- The yield stress of pure lead in compressionPublished by Elsevier ,2002
- The yield behaviour of pure polycrystalline copper under repeated tensile impact loadingActa Metallurgica, 1971
- Inverse Strain-Rate Effects in Aluminum AlloysJournal of Applied Physics, 1971
- On the Use of a Torsional Split Hopkinson Bar to Study Rate Effects in 1100-0 AluminumJournal of Applied Mechanics, 1971
- The influence of strain rate on the mechanical properties and dislocation substructure in deformed copper single crystalsPhilosophical Magazine, 1969
- The strain rate behavior of iron in pure shearInternational Journal of Solids and Structures, 1969
- Inverse Strain-Rate EffectsJournal of Applied Physics, 1969
- Some experiments with the split hopkinson pressure bar∗Journal of the Mechanics and Physics of Solids, 1964
- The dynamic compression testing of solids by the method of the split Hopkinson pressure barJournal of the Mechanics and Physics of Solids, 1963
- The Propagation of Plastic Deformation in SolidsJournal of Applied Physics, 1950