Structural and mechanic modelling of metallic materials failure and forecasting of high-loaded construction elements durability

In this work samples out of steels of the types 15H2MFA, 15 H2NMFA, 12 HN3ND and alloy HN55MVC, welded compounds of mixed type, constructive elements of power equipment are investigated. The purpose of this study is to develop the methods of forecasting construction elements durability by complex thermo-force loading in volumetric stressed state conditions. There have been formulated main principles of structural and mechanical modelling of brittle, viscous and endurance failure of materials in conditions of complex thermoforce loading and volumetric stressed state. The methods of forecasting durability of deep sea-apparatus welded constructions and constructions of power equipment have been developed. New criteria of brittle, viscous and endurance failure have been formulated, forecasting constructions working capacity in volumetric stressed state conditions. The results of investigations have been used in defining the resource and in working out the approaches on deep-sea apparatus and power equipment safe workAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio