超高速衝突時の純アルミニウムからの噴出物サイズおよびクレータサイズ

抄録

After aluminum alloy A2017-T4 spheres with a diameter of 1.0mm struck thick pure aluminum targets, 4N, 3N and A1050, at an impact velocity of 5 km/s, ejecta size distribution were examined in detail. A two-stage light-gas gun at the Institute of Space and Astronautical Science (ISAS)/Japan Aerospace Exploration Agency (JAXA) was used for impact experiments. The size of the ejecta collected from the test chamber was measured using image analysis software. The size distribution from the pure aluminum targets was compared with that of aluminum alloy 6061-T6.