EARLY GROWTH OF FRETTING FATIGUE CRACKS

被引：19

作者：

ALIC, JA ^{[1
]}

HAWLEY, AL ^{[1
]}

机构：

[1] WICHITA STATE UNIV,DEPT MECH ENGN,WICHITA,KS 67208

来源：

WEAR | 1979年 / 56卷 / 02期

关键词：

D O I：

10.1016/0043-1648(79)90240-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fractographic studies have been conducted on fretting fatigue test specimens made of 7075-T7351 aluminum alloy. Growth rates of fretting fatigue cracks as determined from striation spacings were much higher than would be expected for this alloy based on the cyclic stresses alone. The results indicate that in the early stages of crack growth fretting acts to increase the effective stress intensity factor range, thus greatly accelerating crack propagation rates. However, a full understanding of the early stages of fretting crack growth will also depend upon knowledge of the behavior of short (about 100 μm) fatigue cracks in general. © 1979.

引用

页码：377 / 389

页数：13

共 25 条

[1] FORMATION OF FRETTING FATIGUE CRACKS IN 7075-T7351 ALUMINUM-ALLOY [J].