WIT Press

Effects Of An Extremely Shallow Partial Notch On Fatigue Strength Of 0.45% C Steel

Price

Free (open access)

Paper DOI

10.2495/FR980351

Volume

19

Pages

9

Published

1998

Size

621 kb

Author(s)

H. Nisitani, T. Teranishi, K. Sato & S. Tanaka

Abstract

In general machines and structures have a rough surface due to machining Therefore, it is important to investigate the effect of an extremely shallow notch on fatigue strength. In the present study, rotating bending fatigue tests were carried out on annealed or quenched-and-tempered 0.45% carbon steel specimens with extremely shallow partial notches whose depths are constant and whose notch radii are different. This means that the values of Varea are constant and the radii of notch are different. The fatigue strength of these specimens was investigated by linear notch mechanics and Varea parameter model. Moreover, the limitation for application of the model was discussed. 1 Introduction Because ma

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