To the determination of the contact's forms of exploded mass with the clamping medium

Abstract

Previously authors have considered the problem of the explosion of a flat charge of explosive substance (ES) in a two-layer medium. The flat shape of the charge is achieved by using the system of the parallel-hole charges, which parameters are uniform (system parameters cylindrical charges are uniform in the given sphere, if they have the same diameter, density and type of explosive charge, and their axes are parallel to each other, the boundary between the medium and are from this boundary at equal distances), and the displacement of the contact points of the array with the clamping medium is the same. In this paper we have considered the problem of the explosion of the fan charges system. In this case, the parameters are already heterogeneous as the distance between the wells is continuously changing. It is noted that this heterogeneity of charge gets to uneven displacement of the contact; therefore, there has been no uniaxial strain of the clamping medium state. However, assuming that in this case, in the volume of the clamping medium we can distinguish the horizontal bars, in which there is a uniaxial deformation of the medium and we can neglect effects associated with the relative displacement of the rods, in particular - dilatancy, it becomes possible to applicate the previously found solutions and to discover the form of the contact’s section after the explosion of charges’ heterogeneous system for determination the displacement of the contact of every rod. Numerical studies showed that the greater the charge heterogeneity, the more different the design of the actual contact form.