Host: The Japanese Society for Planetary Sciences: Local Organizing Committee for 2006 Fall Meeting
A strength dominated cratering continues until when the target strength becomes higher than the stress caused by impact, which propagates from impact site with attenuation. Since the cratering on brittle materials depends on both compressive and tensile stress, we must measure the compressive and tensile strength of target.
We made sintered glass bead-silicate mixtures as the target. Both compressive and tensile strength of glass bead-silicate mixtures were measured with changing silicate content at low strain rate by uniaxial compression and Brazilian test, respectively. We performed impact cratering experiments on mixture targets at high velocity (2.5km/s to 3.5km/s) and low velocity (about 200m/s). We will compare the results with the case of ice-silicate mixtures and report the differences between them.
