Hypervelocity impact phenomena at low temperatures using a cryostat

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

Research output: Contribution to conferencePaperpeer-review

Abstract

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.

Original languageEnglish
Pages2668-2677
Number of pages10
Publication statusPublished - 2005 Dec 1
EventInternational Astronautical Federation - 56th International Astronautical Congress 2005 - Fukuoka, Japan
Duration: 2005 Oct 172005 Oct 21

Other

OtherInternational Astronautical Federation - 56th International Astronautical Congress 2005
CountryJapan
CityFukuoka
Period05/10/1705/10/21

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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