Kryvenda S. Strength analysis of combined multi-element joints of aircraft articles made of composites.

The object is combined joint with variable parameters loaded with thermal-mechanical loading. The aim is working out of strength analysis methods and methods of determinations of geometrical parameters of combined joints of articles made of composites. These methods are based on unified mathematical model of joint stressed-strained state. Methods are joint modeling based on classical dependencies of solids mechanics and building mechanics; for electrical model the Kirchgoff law is used; re-searches for the model are provided based on comparison with other models and ex-periments. The following results of the work were obtained: dependencies for determi-nation forces in elements of joint loaded with thermal and mechanical loading; depend-encies for determination of compliance of combined links with arbitrary structure; methods and algorithms for stress estimation of combined joining layer and forming of its rational structure with prediction the order of components breaking; the method of estimation ofload-carrying ability of joint, breaking at steady loading. The results of the paper are applied in teaching process and ASRC "Antonov". The paper is recommended for application in design and manufacturing aviation and aircraft/aerospace enterprises.