Ivanov A. The definion of actual mechanical performance of kinds of steel in maintained construction.

The thesis is devoted to development of a technique of a strength testing of a material by a method "of a shear of a thread " under operating conditions of constructions. The gear for creation of a gain on the test screw is developed; the constructions of a series of accommodating permitting considerably are offered to increase exactitude of manufacture of an orifice with a thread in a tested material. The researches of the mechanism of destruction of a coil of a thread are conducted at the definition of strength, steel. The comparative trials various of kinds of steel by a method " of a shear of a thread " and standard methods are conducted, the transitional equations of a regression of passage from an outcome of one aspect of a trial to other (standard) are obtained.