Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 02, 2019 - November 04, 2019
The SHB method was conducted to investigate the deformation characteristics of carbon steel at high strain rates. Furthermore, the strain rate dependence was obtained by conducting static tensile tests with a strain rate of 1 × 10- / s to 1 × 10-1 / s and high-speed tensile tests with a strain rate of 1 / s to 1 × 103 / s. As a result of the SHB test, a slight stress amplitude was observed near the yield point but a good stress-strain curve was obtained. In the case of a plastic strain of 0.1, the strain rate tended to rise almost linearly in the range of 1 × 10- 3 / s to 1 × 103 / s. At high strain rates the stress wave amplitude in the high-speed tensile was larger test than that in the SHB method, but it was found that the same value as the SHB method can be obtained by smoothing.
