A method for rearranging the parameters of two models of the volume curve

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Published: Dec 24, 2023
DOI: https://doi.org/10.47049/2226-1893-2023-4-87-95
Keywords:
fatigue curves, endurance limit, recalculation of parameters of fatigue curves.

Main Article Content

A.V. Konoplev
Odesa National Maritime University, Odesa, Ukraine
Yu.O. Hryhoriev
Odesa National Maritime University, Odesa, Ukraine
V.V. Halevskyi
Odesa National Maritime University, Odesa, Ukraine

Abstract

The problem related to the recalculation of the parameters of the power equation of the fatigue curve and the parameters of the Weibull equation is considered. An analysis of one of the existing methods was carried out, which is based on a number of assumptions and therefore has low accuracy. It is emphasized that the development of this direction is relevant, as it expands the possibilities of comparative analysis of experimental data published in literary sources. In addition, the recalculation of the parameters of the fatigue curve allows for the extrapolation of the fatigue curve in the region of long durability. The article offers an analytical approach to recalculating the parameters of the power equation to the parameters of the Weibull equation using the «wxMaxima» computer mathematics system. Practical calculations were carried out in relation to the test results of four types of samples made of structural grades of steel.

Article Details

How to Cite
Konoplev, A., Hryhoriev, Y., & Halevskyi, V. (2023). A method for rearranging the parameters of two models of the volume curve. Herald of the Odessa National Maritime University, (71), 87-95. https://doi.org/10.47049/2226-1893-2023-4-87-95
Issue
No 71 (2023): Herald of the Odessa National Maritime University
Section
Tightening and strength of machine parts
Author Biographies

A.V. Konoplev, Odesa National Maritime University, Odesa, Ukraine

Doctor of Technical Sciences, Professor, Head of the Department of «Machine Science and mechanical engineering»

Yu.O. Hryhoriev, Odesa National Maritime University, Odesa, Ukraine

Ph.D. Associate Professor of the Department of «Mathematics, physics and astronomy»

V.V. Halevskyi, Odesa National Maritime University, Odesa, Ukraine

Senior Lecturer of the Department «Machine Science and mechanical engineering»

References

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