SPRUT: A METHOD FOR COMPUTING 2-D NON-STEADY STATE FLOWS OF DESTRUCTABLE MEDIA

V. A. Bychenkov, V. V. Gadjieva
Vant. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1978. Вып.2. С. 17-22.

      A computational medium model and numerical method for solving 2-D time-dependent problems, taking into account elastic/plastic properties and material destruction, are proposed.
       Several simple assumptions, introduced in the model, permit to simulate the flows of media having different strength properties (porous, crushed, fractured). The model studies two nontrivial parameters, that is pore and fracture specific volumes. The governing eguations are presented in a differential form.
       The numerical method is based on an explicit difference scheme approximating original differential eguations on rectangudar meshes in Lagrangian coordinates.
       An example is included which shows simultaneous burst of two charges in a destructable medium.