Work

Quantitative Evaluation of the Effect of Surface Roughness on Fatigue Strength. Effect of Depth and Pitch of Roughness.

Year: 1997

Type: article

Abstract: In order to investigate the effect of surface roughness on fatigue strength, fatigue tests for a medium carbon steel, which was annealed and free of residual stress (HV≅170) and quenched and tempered (HV≅650). were carried out. To simulate the actual surface roughness, extremely shallow periodical notches with a constant pitch but irregular depth were introduced. The equivalent defect size √(area)R for roughness was defined to evaluate the effect of irregularly shaped roughness using the √(area) parameter model. The fatigue limits of the annealed medium carbon steel specimens with artificial surface roughness are much higher than those of the specimen with a single notch because of the interference effect of notches. The fatigue limits predicted by the √(area) parameter model are in good agreement with the experimental results.

Source: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A

DOI: 10.1299/kikaia.63.1612

Authors: Yukitaka MURAKAMI, Koji TAKAHASHI, Teruo YAMASHITA

Language: English

Topic: Fatigue and fracture mechanics

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W1985083162

FWCI:

Cites:

Cited by: 55

Related to: 10