The simulation of nonstationary processes of gas outflow from deformable high-pressure vessels

The problems of nonstationary outflow of gas medium from damaged high-pressure vessels are formulated in a conjugated aeroelastoplastic statement taking into account large displasments and deformations, nonlinear wave processes in the outflowing medium. A numerical method for solving the problems stated, algorithms and software have been worked out. The problems of gas outflow from the openings in cylindrical and spheric shells have been solved in a conjugated nonlinear formulation. Specific features of perforated vessel deformation and their further damage trends are demonstrated. The results obtained can be easily applied for analyzing accident consequences in nuclear power engineering, machinebulding, pipe lines.