Paper reports a result of hypervelocity impact experiments on cryogenically cooled aluminum alloys. Experiments are carried out on a target palate at 122 K. Aluminum spheres at 1.95 km/s in 50 kPa air were impinged against the target plate at cryogenic temperature and the result was compared with room temperature target plates. HVI processes were visualized with shadowgraph arrangement and recorded with high-speed video camera and to ensure the temperature dependence we compared HVI tests with metal target plates with AUTODYN 2D and SPH numerical simulations. We fond that cryogenic impacts created slight differences of impact damage from room temperature ones, that is, the shape and averaged diameters of HVI crater holes were less at cryogenic impacts.
|出版ステータス||Published - 2005 12 1|
|イベント||International Astronautical Federation - 56th International Astronautical Congress 2005 - Fukuoka, Japan|
継続期間: 2005 10 17 → 2005 10 21
|Other||International Astronautical Federation - 56th International Astronautical Congress 2005|
|Period||05/10/17 → 05/10/21|
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