Investigation on fatigue strength of a shaft with diameter enlarged partially by combination of a cyclic bending load with an axial compressive load

X. Zhu; Y. Kuwahara; N. Okabe; K. Ogi; F. Ikuta

doi:10.1117/12.851963

14 April 2010 Investigation on fatigue strength of a shaft with diameter enlarged partially by combination of a cyclic bending load with an axial compressive load

X. Zhu, Y. Kuwahara, N. Okabe, K. Ogi, F. Ikuta

Author Affiliations +

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 752207 (2010) https://doi.org/10.1117/12.851963
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

This paper investigates fatigue strength and existence of mechanical damage experimentally and analytically. In particular, first, we carry out rotary bending fatigue tests and investigate fatigue strength for smooth specimens and specimen processed using the working method. Secondly, we measure Vickers hardness value to investigate strain hardening, and observe microstructure to investigate microstructure change in the diameter-enlargement part. Finally, we simulate stress and strain distribution in the processed part during the processing, using finite element method (FEM), and calculate stress concentration rate and plastic strain. And we predict the existence of mechanical damage in the processed part during the processing experimentally and numerical-analytically. The results of the experiments and analyses indicate that the fatigue damage is not generated in the processed part during the processing in the discussed range of the diameter-enlargement rate D/D₀<1.8, through comparing with the smooth specimens.

Citation Download Citation

X. Zhu, Y. Kuwahara, N. Okabe, K. Ogi, and F. Ikuta "Investigation on fatigue strength of a shaft with diameter enlarged partially by combination of a cyclic bending load with an axial compressive load", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752207 (14 April 2010); https://doi.org/10.1117/12.851963

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available