NEW CRITERION OF FATIGUE-STRENGTH OF A ROUND BAR SUBJECTED TO COMBINED STATIC AND REPEATED BENDING AND TORSION

被引：48

作者：

KAKUNO, H

KAWADA, Y

机构：

[1] Kawasaki Heavy Industries, Ltd., Kobe

来源：

FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES | 1979年 / 2卷 / 02期

关键词：

D O I：

10.1111/j.1460-2695.1979.tb01358.x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Abstract Criteria of fatigue strength of a round bar subjected to combined static and repeated bending and torsion have already been published by Findley and Sines together with empirical formulas by Gough. However, it is only Sines’criterion, by which the fatigue limit under combined bending and torsion is calculated, when completely reversed and pulsating fatigue limits and mean stresses are known. The authors show that Sines’criterion does not conform strictly with experimental results and they correct Sines’criterion so that fatigue failure occurs when the octahedral shearing stress amplitude attains a material constant value which decreases not only in proportion to the octahedral normal mean stress, but also in proportion to the octahedral normal stress amplitude. Applying the authors’criterion to combined repeated bending and torsion, plus coexistent static bending and torsion, a design formula was derived. The formula was compared with experimental results of Gough. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：229 / 236

页数：8

共 7 条

[1]

Nishihara T., Kawamoto M., Strength of metals under combined repeated bending and torsion, Transactions of the Japan Society of Mechanical Engineers, 7, 1, pp. 85-95, (1941)

[2]

Nishihara T., Kawamoto M., Law of failure of metals subjected to combined repeated stresses, Transactions of the Japan Society of Mechanical Engineers, 9, 1, pp. 33-44, (1943)

[3]

Gough H.J., Engineering steels under combined cyclic and static stresses, ARCHIVE: Proceedings of the Institution of Mechanical Engineers 1847-1982 (vols 1-196), 160, pp. 417-440, (1949)

[4]

Matake T., A study on fatigue limit under combined stresses, Trans. Japan Soc. mech. Engrs, 42, pp. 1947-1953, (1976)

[5]

Nishihara T., Endo K., On the theory of fatigue failure, Transactions of the Japan Society of Mechanical Engineers, 17, pp. 146-152, (1951)

[6]

Findley W.N., A theory for the effect of mean stress on fatigue of metals under combined torsion and axial load or bending, Tram. ASME. J. Engng Ind., 81, (1959)

[7]

Sines G., (1955)

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