| Abstract: | The problem of an explosion is considered on the basis of a model of a viscoplastic medium. It follows from the solution that the theoretical dependence of the cavity radius on the time coincides satisfactorily with the experimental data. The introduction of viscosity into the scheme of the motion leads to the appearance of the scaling effect. From an analysis of the stress field, a conclusion follows concerning the existence, even in the initial stage of motion, of intense tangential tensile stresses, which lead to the formation of a system of radial fissures, observed in the experiment.Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 2, pp. 87–93, March–April, 1975.The author thanks E. N. Shera for useful comments, and É. B. Polyaka and M. A. Shabat for assistance in carrying out the computer calculations. |
