Abstract
It is established that blast loading of a rock material of granite type leads to the formation, in addition to the well-known cracking zone, of a more extended zone featuring a microdamage of high-modulus crystal inclusions in the rock. A method of determining the size of this damage zone is proposed. It is shown that the radius of the zone of microdamage of high-modulus crystals can be significantly reduced by means of controlled variation of the explosive density and the blast-loading regime.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 28, No. 16, 2002, pp. 90–94.
Original Russian Text Copyright © 2002 by Leksowskij, Borovikov, Bozorov, Abdumanonov, Sinani, Piletski.
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Leksowskij, A.M., Borovikov, V.A., Bozorov, N.S. et al. The zone of damage for high-modulus materials in explosion-loaded granite. Tech. Phys. Lett. 28, 705–706 (2002). https://doi.org/10.1134/1.1505557
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DOI: https://doi.org/10.1134/1.1505557