Modeling effects of chemical explosives for excavation on moon

Details Modeling effects of chemical explosives for excavation on moon Modeling effects of chemical explosives for excavation on moon

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jaere...5...44g&link_type=abstract

Journal of Aerospace Engineering (ISSN 0893-1321), vol. 5, Jan. 1992, p. 44-58. Research supported by University of Maryland.

Astronomy and Astrophysics

Astronomy

Explosives, Lunar Mining, Lunar Soil, Lunar Surface, Astronomical Models, Chemical Explosions, Excavation, Lunar Bases

Scientific paper

Twelve model tests of chemical explosives (1 g and 0.25 g) of PETN were conducted at 1 g (= lunar 6 g) and 10 g (= lunar 60 g) using the geotechnical centrifuge to determine the effect of chemical explosives on cratering and loosening a compacted lunar simulant prior to excavation. Even small depths of burial of the explosives were found to increase markedly the volume and lip of resulting apparent craters; optimum depths of burial were not pinpointed. Volumes of crates from PETN charges of different weights but equal depths of burial, were related as V = kW exp 0.84 when charges were fully buried, but not for surface tangent charges. Tests conducted at 1 g and 10 g showed no detectable difference in crater volumes for the depths of burial tested. Constraints to extrapolating the research to the lunar surface (using simulant rather than actual lunar soil; working in earth's atmosphere rather than in a vacuum; and working at greater than 1 lunar g are acknowledged.

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