Accession Number:

AD0291491

Title:

HYPERVELOCITY MICRO-PARTICLE IMPACT ON THIN FOILS

Descriptive Note:

Technical note

Corporate Author:

BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD EXPLOSION KINETICS BRANCH

Personal Author(s):

Report Date:

1961-02-01

Pagination or Media Count:

49.0

Abstract:

Micrometeorite bombardment of thin foils was simulated by a ballistic method of projecting cast iron particles less than 100 microns in size to 12 km sec. The Mylar and Testlar target foils tested were prospective balloon satellite materials. Bare and metal coated specimens, 0.5 and 2 mils thick, were included. Perforations were analysed by a photographic enlargement technique particularly adapted for complete survey of exposed target area without gaps or duplications. Statistical distributions of perforation diameters were obtained and matched with a similar distribution of the impacting fragments. Thus, the integrated impact intensity sustained by a particular target was determined. Results are reported in tabular form suitable for evaluation of changes in physical properties of the foils due to meteorite impact. These experimental methods are suitable for studies of impacts on simple metal foils.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE