ELASTIC-PLASTIC ANALYSIS OF THE FATIGUE LIMIT FOR A MATERIAL WITH SMALL FLAWS

被引：78

作者：

USAMI, S

SHIDA, S

机构：

[1] Mechanical Engineering Research Laboratory, Hitachi Ltd, Hitachi-Shi, 317

来源：

FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES | 1979年 / 1卷 / 04期

关键词：

D O I：

10.1111/j.1460-2695.1979.tb01334.x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Abstract Fatigue tests were carried out on mild steel with small cracks for which linear fracture mechanics is not effective. A fatigue limit criterion, based on the cyclic plastic zone size at a crack tip being a material constant at the fatigue limit, can effectively evaluate the effects of crack length and stress ratio. Regarding flaws as cracks, the theory gives fatigue limit values close to those obtained in experiments on specimens with natural defects, such as surface roughness, micro‐shrinkage cavities, inclusions etc. The effect of water corrosion was also investigated. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：471 / &

共 12 条

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