Physics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011cosre..49..263k&link_type=abstract
Cosmic Research, Volume 49, Issue 3, pp.263-268
Physics
Scientific paper
For modeling the space dust and debris effect on flying vehicles, an investigation of the low-velocity impact of corundum and tungsten powders, accelerated by explosion, with particle size up to 50 microns on steel and duralumin targets was carried out. Also studied was the impact of sewing needles against metal and dielectric barriers, antimeteor shield models, and duralumin containers with hard materials, gunpowder, and explosives. At impact of powders at velocities of up to 2 km/s and needles at a velocity of up to 0.5 km/s against metals, the channels arose with lengths greater than 100 and 50 diameters of a striker. At impact of needles, the containers with hard explosive materials were destroyed because of ignition of their contents, and containers with plastic explosive were punched through, and no burning occurred. The energy, released at destruction of plexiglas blocks and containers with hard materials, many times exceeded the impact energy due to release of the elastic energy stored in them.
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