Fatigue limit and growth of small cracks in notched specimen

被引：0
作者：
Rosenberg, G [1 ]
机构：
[1] Tech Univ, Fac Met, Kosice, Slovakia
来源：
METALURGIJA | 2001年 / 40卷 / 01期
关键词：
fatigue strength; notched specimen fatigue limits; small crack growth; crack growth threshold; wrought and PM materials;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Smooth, notched and precracked specimens were fatigued by bending at room temperature. The study presents the results of extensive fatigue tests carried out on steels, titanium and aluminum alloys and PM materials. The main objective of this study was to compare the fatigue limit of materials and the threshold conditions for the growth of fatigue cracks. The experimental results of crack propagation behavior were analyzed using a linear elastic fracture mechanics approach. The role of crack tip shielding in retarding the growth of fatigue cracks is also discussed.
引用
收藏
页码：13 / 18
页数：6
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