A Study of Self-Loosening and Fatigue Failure of Bolted Joint under Transverse Vibration - Influences of Property Class of Bolt and Plastic Region Tightening

Author:

Hashimura Shinji1

Affiliation:

1. Kurume National College of Technology

Abstract

In our previous study, loosening-fatigue tests under small transverse vibrations had been performed to elucidate bolt behavior and loosening-fatigue mechanism in the long life region. In this study, the influences of bolt property class and the plastic region tightening on loosening-fatigue characteristics under transverse vibration have been investigated. Result shows that bolt property class has little influence on the loosening-fatigue limits under transverse vibration. Result also shows that the transverse loosening-fatigue limit of the bolt which has been tightened to within the plastic region is lower than the transverse loosening-fatigue limit of the bolt that has been tightened to within the elastic region. This result is the opposite of the result of the axial fatigue characteristics of bolted joints.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference5 articles.

1. A. Shinbun : News paper morning edition, March 19 th 2002, p.35 (2002).

2. S. Hashimura and D. F. Socie : Transaction of JSME C Vol. 72-716 (2006), pp.1297-1304.

3. A. Yamamoto in: Principle and Design for Bolted Joint Tightening (Yokendo Co-ltd, (1995), pp.147-178. ).

4. I. Yoshimoto, K. Maruyama, and Y. Yamada : Bull. P.M.E. (Tokyo Institute of Tech. ) No. 55, (1985), pp.5-10.

5. Information on http: /www. fatigueCalculator. com.

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