Dovhopolov A. The strength assurance of detachable threaded joint of reinforced composites parts

The scientific and practical problem of assurance of maximal strength of de-tachable threaded joint of reinforced composites parts strength was solved by theoret-ical and experimental studies conducted on joint geometry parameters influence. The factors, reducing performance characteristics the most, were identified for such type of a joint. These allowed to develop methods for strength theoretical studies and as-sessment. Basing on the developed method of constitutive equation coefficients de-termination according to standard mechanical tests, the stress and strain state simula-tion model of the threaded joint was built. The research has given practical reasonable recommendations for the proposed parts’ joint method made of reinforced composite materials. The thesis research is of great interest for their implementation at the enterprises producing various construction, machine and unit types made of reinforced compo-site parts. The practical significance of obtained results for technically advanced in-dustries is to create a technology for the detachable threaded joint shape in fibre rein-forced composite materials and to develop an algorithm for the strength study of such joint with a rope thread under different stress-strain states. Altogether, these develop-ments extend the usage of detachable threaded joints in mechanical engineering and fibre-reinforced composite materials at a new level.