Open AccessStudy of efficiency of methods for determining fatigue limits through the example of its determination for welded joints of marine stationary platforms
Author(s) -
I. V. Starokon
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/860/1/012024
Subject(s) - submarine pipeline , welding , fatigue limit , limit (mathematics) , computer science , structural engineering , marine engineering , resource (disambiguation) , residual , value (mathematics) , engineering , mechanical engineering , mathematics , algorithm , geotechnical engineering , machine learning , mathematical analysis , computer network
Currently, the world is actively engaged in the extraction of oil, gas and other useful resources at offshore fields using offshore stationary platforms. Due to the fact that the platforms are operated for a long time, fatigue damage accumulates in them. This issue becomes especially important when assessing the residual life of welded joints of the offshore platform, the repair of which is carried out using various technologies. The resource of such compounds is determined on the basis of the fatigue diagram, the key value of which is the fatigue limit. A large number of theories have been developed to determine the fatigue limit. However, calculations based on these theories do not always give a correct estimate. Therefore, the purpose of this article is to study the effectiveness of various methods for determining endurance limits using welded joints of offshore stationary platforms as an example and to select a method that allows obtaining the most accurate value of fatigue limit.