Determination of Tensile Properties at Increased Strain Rates and Various Temperatures

Abstract

Abstract This paper reports on the development and first application of a low-cost dynamic tension testing method which makes testing at strain rates in the range of 100/s to 500/s and various temperatures as simple as an instrumented Charpy test. The kinematical and kinetic analysis of the newly introduced, reusable clamping device allows the determination of the stress-strain curve from the measured force history during the tearing process. The first results show that the new technique is very promising to determine the influence of loading rate and temperature on the mechanical properties of structural materials, since the measured dynamic tensile properties compare well in absolute value as well as accuracy and reproducibility with those obtained using conventional high-speed tension testing facilities.