Hypervelocity impact phenomena at low temperatures using a cryostat

K. Ohtani, D. Numata, T. Kikuchi, M. Sun, K. Takayama

研究成果: Paper査読

抄録

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.

本文言語English
ページ2668-2677
ページ数10
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 172005 10 21

Other

OtherInternational Astronautical Federation - 56th International Astronautical Congress 2005
国/地域Japan
CityFukuoka
Period05/10/1705/10/21

ASJC Scopus subject areas

  • 宇宙惑星科学
  • 航空宇宙工学

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