Gonsalyes G. Bifurcation of the deformation process and postbifurcation behavior of elasticoplastics plates and shells under complex loading.

Solving stability problem in the base of the physical equations of the plasticity theory taking into account microstrain, and the research of the influence of loading history on the bifurcation of process deformation, and also on the postbifurcation behaviour of shell and plates. Processes of complex loading of elasticplastic plates and shells. Formulation of problems, development of solutions methods and obtaining the solutions of boundary problems using relationships of the theory of plasticity taking into account microstrain when proceses of complex loading is taking place. In this work the numerical algorithms for the determination of the bifurcations points and the research of postbifurcation behavior of thin plates and cylindrical shells in the range of the theory of plasticity taking into account microstrain under complex loading are offered. The investigation of the bifurcation problem of process deformation on thin rectangular plates and cylindrical shells for the two and three dimensional tra jectory of prebuckling loading for the case of two-link trajectory, the study of influence loading history on the boundary value of the complex outwardly loading on thin square plates and cylindrical shell. Educational process, mechanical engineering.