Tkachenko E. Three-dimensional problems of stability of laminated structural members with covering.

The object of investigation is the phenomenon of effect of cardinal change of structural and physical - mechanical parameters of layered materialson equilibrium state of layered structural members with coverings. The materials are exposed by thermo - force compressing loads.The computational schemes and mathematical formulation of the problem are given For this purpose the three-dimensional linearized theory of stability of deformed bodies is used. The researches are carried out in static statement within the of model piecewise - homogeneous medium at small and finite pre - critical strains.Two classes of problems are considered on surface instability laminated bodies with finite layers number for plane, axisymmetrical and spatial unstability form . The properties of layers for elastic, elastoplastic and visco-elastic bodies are described. With help computer a series of concrete problems about surface instability of stratified skew fields is reviewed, the new mechanical effects are detected and the guidelines for engineering computational methods are given.