METHOD FOR HYDRAULIC OR PNEUMATIC TESTS OF ARTICLES UNDER PRESSURE IN COURSE OF THEIR OPERATION

FIELD: machine building.SUBSTANCE: critical sizes of cracks in normal operation mode are defined. Afterwards using methods of fracture mechanics and strength of materials, such pressure and temperature for tests are determined at which the obtained sizes of critical crack do not increase during the...

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Hauptverfasser:	GETMAN ALEKSANDR FEDOROVICH, KAZANTSEV ALEKSANDR GEORGIEVICH, MIKHAL'CHUK ALEKSANDR VASIL'EVICH, ARKADOV GENNADIJ VIKTOROVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	FIELD: machine building.SUBSTANCE: critical sizes of cracks in normal operation mode are defined. Afterwards using methods of fracture mechanics and strength of materials, such pressure and temperature for tests are determined at which the obtained sizes of critical crack do not increase during the increased interval of test frequency up to the critical crack sizes in normal operation mode.EFFECT: increased time interval between tests without deteriorated article reliability.5 dwg Изобретение относится к области обеспечения надежности и безопасности сосудов и трубопроводов давления во время их эксплуатации. Определяют критические размеры трещин в режиме нормальной эксплуатации. Затем методами механики разрушения и сопротивления материалов находят такое давление и температуру испытаний, при которых полученные значения размеров критических трещин не дорастают за увеличенный интервал периодичности испытаний до размеров критических трещин в режиме нормальной эксплуатации. Достигается обеспечение увеличенного интервала времени между испытаниями без снижения надежности изделия. 5 ил.