A device for measuring strain-time relationships in compression at quasi-static and dynamic strain rates
- 1 November 1971
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 4 (11) , 873-875
- https://doi.org/10.1088/0022-3735/4/11/018
Abstract
A device for determining the strain-time behaviour of metals in compression is described. A cylindrical metal specimen forms one element of a coaxial capacitor which is coupled to one of two tuned variable capacitor circuits. The increase in capacitance of the specimen capacitor during deformation is measured as a voltage change on a cathode-ray oscilloscope. Typical experimental results are given which in conjunction with stress-time relationship can be used for determining the dynamic stress-strain behaviour of metals over a wide range of strain rates.Keywords
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