THE DEVELOPMENT AND REALIZATION OF METHODS OF THE CONTROLL-ABLE PLASTIC DEFORMATION OF STRUCTURE ELEMENTS WITH INCREASE OF ITS STABILITY

The object of investigation: the structure elements: the rods, the rectangular plates and cylindrical shells. The purpose of the work: the development and realization of the controllable process of plastic formation, the theoretical and experimental study of behaviour of rods, plates and shells after elastic-plastic training. In the geometrically and physically unlinear setting, the problem about protruding and stability of the out-of-centre compressed rods with the elastic unloading and secondary plastic deformations taken into account has been solved. The influence on the effect of the rod flexibility limit loads increase, of the level of training and eccentricity has been established. The units, on which the process of the controllable plastic deformation for the rods, plates and shells, have been developed. The methods of the stability limits increase for the out-of-centre compressed rods and for those of the unperfect form have been offered. The obtained results allow to realize the elastic-plastic training in practice and to essentially reduce the material capacity of the constructions elements. The effective models of the units and the methods of performance of the plastic deformation controllable process for the rods, rectangular plates and cylindrical shells have been introduced in service. The field of application: the machine construction, buildingAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio