Atmospheric fragmentation of meteorites from the standpoint of mechanical strength

Details Atmospheric fragmentation of meteorites from the standpoint of mechanical strength Atmospheric fragmentation of meteorites from the standpoint of mechanical strength

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991avest..25..364t&link_type=abstract

Astronomicheskii Vestnik (ISSN 0320-930X), vol. 25, May-June 1991, p. 364-371. In Russian.

Astronomy and Astrophysics

Astronomy

5

Atmospheric Entry, Earth Atmosphere, Fragmentation, Meteor Trails, Meteoroid Showers, Fracture Mechanics, Impact Loads, Mathematical Models

Scientific paper

Consideration is given to three factors which cause atmospheric fragmentation of meteorites: loads which affect a meteorite body moving in the atmosphere; the body's geometry, which is responsible for stress distribution; and the strength of the meteorite material. Fragmentation is found to be due to mechanical loading by inertial forces and flow pressure. Since destructive loads are associated with aerodynamic pressure and, consequently, depend on motion velocity, there is a possibility for determining the geocentric velocity and transition to the astronomical parameters of objects producing meteorite showers.

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