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Information × Registration Number 0216U005818, 0113U004391 , R & D reports Title Development of calculating estimation procedure of the maximum allowable operational life of parts operating under cyclic thermo-mechanical loading and the influence of multiple reconstructive multi-layer surfacing on the resource popup.stage_title Head Senchenkov Igor Konstantinovich, Registration Date 12-02-2016 Organization S.P.Timoshenko Institute of Mechanics popup.description2 The objects of investigation are residual and current thermomechanical and microstructural state as well as durability of cylindrical parts under multilayer surfacing and subsequent combined thermal and mechanical cyclic operational loading. The aim is to carry out the calculations of the stress-strain state, microstructure and durability of the weld at the ends and the side surface of the punch and the hot rolling roll while surfacing and operation at multiple recovering surfacing. For the numerical simulation of the processes the time steps and iterative methods in combination with the finite element method were used. A multi-stage scheme of repair surfacing was developed. Some examples of calculation the service life surfaced parts were considered. A model of the destruction caused by fatigue crack propagation was also developed. The results can be used by co-executor of Paton IEW NAS of Ukraine for the development of new technologies of multilayer multiple restoration of parts in order to increase life time between repairs and service. Product Description popup.authors Жук Я.О. Карнаухов В.Г. Киричок І.Ф. Козлов В.И. Левон Л.Г. Оксенчук Н.Д Петренко Н.В. Червінко О.П. Шевченко А.Ю. popup.nrat_date 2020-04-02 Close