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Information × Registration Number 0207U002338, 0104U006691 , R & D reports Title Procedure for forecasting of a residual resource of bearing elements of metal bridges, under influence irregular /batch etc./ loadings with allowance effect of environment popup.stage_title Head Sulym Н.T., Registration Date 24-01-2007 Organization Pidstryhach Institute for Applied Problems of Mechanics and Mathematics NASU popup.description2 The models of power loading of different-profile rod elements with cracks, which are used in the bridges as carrying ones, are proposed. By developing and generalizing the method of boundary interpolation, the simple high-accuracy analytic expressions are built for the stress intensity factors (SIF) for the typical power schemes of exploitation loading the bridge designs and for advancing failure processes. The procedure for approximate calculation the SIF in welded joints with cracks is developed, taking into account that fields of residual stresses change when the crack increases. The methods are described for approximate definition the SIF for each of 19 found types of cracks on the basis of using the tested elasticity theory methods, materials resistance and crack mechanics, and classical failure mechanics Product Description popup.authors popup.nrat_date 2020-04-02 Close