Geodesic
The study of the process of explosive loading of ice
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 6 (2015), pp. 81-89 Cet article a éte moissonné depuis la source Math-Net.Ru

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Nowadays, researches of the behavior of certain natural materials are relevant. This is due to the development of northern territories, extraction of natural resources in the Far North, etc. Ice is an understudied natural material. The modern concept of ice failure is just beginning to develop. The work presents results of parametric studies on dynamic loading of ice, as well as results of field experiments on explosive loading of ice consisting of snow, slush, and ice. It was found that a ice blast lane with a cross section size of 350 cm is formed after the explosion of the explosive substance in water under ice. The behavior of ice under explosive loading is described from the standpoint of the phenomenological macroscopic theory of continuum mechanics based on fundamental laws of conservation. The ice is modeled by a single-phase, elastic-plastic, and compressible medium, with allowance for strength properties, shock-wave phenomena, and joint formation of separated and shear damages. The behavior of a massive ice cylinder upon undermining a bulk explosive at different depths is investigated. The diameter of explosive lanes, the speed of the free surface, ice damages, as well as hydrostatic pressure and deviatoric stresses at the control points have callculated. For a more effective destruction, it is recommended to lay explosives in the middle of the ice cylinder.
Keywords: ice, model, method, experiment, explosive, deformation
Mots-clés : calculation, explosion, destruction. 
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Yu. N. Orlova; M. Yu. Orlov. The study of the process of explosive loading of ice. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 6 (2015), pp. 81-89. http://geodesic.mathdoc.fr/item/VTGU_2015_6_a9/

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