THE INFLUENCE OF NOTCH PLASTICITY ON SHORT FATIGUE-CRACK BEHAVIOR

被引：14
|
作者：
AHMAD, HY [1 ]
RIOS, ERD [1 ]
YATES, JR [1 ]
机构：
[1] UNIV SHEFFIELD,SIRIUS,DEPT MECH & PROC ENGN,SHEFFIELD S1 3JD,S YORKSHIRE,ENGLAND
来源：
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1994年 / 17卷 / 02期
关键词：
D O I：
10.1111/j.1460-2695.1994.tb00803.x
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A study has been made of fatigue crack formation and growth at the root of different notch profiles in a structural steel subjected to fully reversed tension-compression loading. The scale of stage I microstructural crack growth at notches decreased with increasing notch root strain and was comparable to the size of stage I cracks in shallow hourglass profile specimens at the same strain. Stage II crack growth rates were faster within the notch plastic field than in the elastic stress field of the bulk material.
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页码：235 / 242
页数：8
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