Chernishenko M. A deformed state of any curvature shell with surface cracks

The new research problems of intense - deformed state of elastic - plastic shells with through and not through cracks are solved in thesis. The research technique of components of an intense state of elastic - plastic shells of any curvature with rectilinear in the plan cracks, calculation of the sizes of plastic zones which precede cracks and crack opening displacement is offered. The numerous calculative and comparative data are resulted. Mentioned calculative data are in good correspondents with a well-known results, obtained by other researchers with other analytical and calculative techniques using. The technique is distributed on the elasto - plastic shell with two through coming colinear cracks system inrense - deformed state research. Influence of external loading relative value, shell and a material parameters on an intense state components is investigated. Some new relations between a stressed state components discovered. A new variation of “mechanicals quadraturas method”, based on a formulas for limited on an integra-tive interval functions is offered. Results, obtained with this variation application are well-corresponding with a results, obtained with application of a variation, based on a formulas for non-limited functions using. Amount the offered method advantages it is linear algebraic system, to the solution of which the so-lution of a singular integral equations system is bring-ing to. The provided in work researches can be applicative in a wide range of theoretical and engineering problems, such as stressed state in plates and shells with a defects problems solution, a maximum and rated load and pressure for pipe lines and so on.