Nowadays the constructions from metals, plastic and filled plastics that contain detachable joints of details are widely applied in various constructions, machine components, building, mechanical engineering and other branches. But the primary target of applied devices and machines constructions improvement is their weight and size reduction with simultaneous improvement of endurance characteristics, reliability and durability increasing. For the task solution in some branches of mechanical engineering they replace traditionally applied metals and their alloys by carbon fiber composites that according to the physicomechanical characteristics are equal with some structural materials
