FIELD: measurement technology.
SUBSTANCE: most probable damage sites of metalwork are found and surfaces of tested areas are investigated. Surfaces of control areas are cleaned till achieving roughness of 0,32mcm≥Ra›0,16mcm; linear sizes of any control area have to be equal or bigger to linear sizes of area of elastic-plastic deformation. Surface of tested samples are cleaned in the area of stress concentrator. Measurements are conducted at surface of action of tensile force. Changes in areas of liner sizes of area of elastic-plastic deformation are registered and estimated by means of optical detectors. Changes in linear sizes under effect of loading during exploitation of metalwork are supposed be the measure of degree of fatigue damage of tested metalwork's unit.
EFFECT: improved reliability; higher resolution of diagnosis.
5 dwg
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