NUMERICAL SOLUTION OF THE PROBLEM OF IMPACT OF A FLAT LONGITUDINAL NON-STATIONARY SEISMIC WAVES ON AN ELASTIC HALF-PLANE WITH THE CAVITY (RATIO OF WIDTH TO HEIGHT OF ONE TO EIGHT)
Is some information modeling safety elastic half-plane under non-stationary seismic wave effects using the finite element method. Considered the wave theory of seismic safety. Applicable technical tool in the form of vertical cavities to increase the security of the facility. To solve this problem apply the wave equation mechanics of deformable solids. Basic relations of the finite element method obtained by using the principle of possible displacements. Linear dynamic problem with initial and boundary conditions given to the system of linear ordinary differential equations with initial conditions. The explicit two-layer scheme. Reviewed the problem statement with the cavity (ratio of width to height of one to eight) in the half-plane when exposed in the form of Heaviside functions. Solve the system of equations of 59048 unknown. Four points is the change in the grid voltages.