IMPROVEMENT METHODS FOR INVESTIGATION OF THERMO-ELASTIC-PLASTIC STRAINING PROCESSES ON BASE OF MULTIMODEL ANALYSIS AND ACCURATE INTEGRATION OF DEFINING EQUATIONS

The methods for solution of the thermo-elasticity plasticity problems on base of the multimodel analysis and accurate integration of the defining equations have been developed. The single universal form for representation of the defining equations for different variants of the plasticity theory on base of using the tooling of the internal state variables has been obtained. The accurate solution of the problem for integration of the defining equations in the theory of the plastic flow with mixed isotropic-kinematic hardening for piecewise-linear trajectories of the straining has been obtained. The developed methods, algorithms and software have been introduced at the Research Technological Institute and Research Institute of Electric-Physical Equipment into the practice of the designed integration on the stressed state of the members in the nuclear and thermonuclear reactors. Application field: mechanics of deformated solids, mechanics of structuresAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio