Analysis of Fatigue Calculation Methods for Variable Loading Stationary Operating Modes to Validate Domestic CAE Software — APM StructFEM

The paper introduces the results of studying the possibilities and accuracy of numerical solutions of fatigue strength in the domestic software product APM StructFEM and in the well-known ANSYS software, as well as the results of analytical calculations for similar cases. The analysis of the accuracy of the obtained solutions is carried out on the example of the analysis of a section of the pipeline, for different variants of loadings and for a combination of these loadings. The areas of the most effective solutions obtained for various methods of reducing the operating variable modes to sinusoidal loading are determined. The study is caused by the implementation in the Russian Federation of an import substitution program in the field of strategic technologies, which can rightfully include computer solutions for engineering analysis.

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