Non-propagation conditions for fatigue cracks and fatigue in the very high-cycle regime

被引：22
|
作者：
Pippan, R [1 ]
Tabernig, B [1 ]
Gach, E [1 ]
Riemelmoser, F [1 ]
机构：
[1] Erich Schmid Inst Inst Mat Sci, A-8700 Leoben, Austria
来源：
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2002年 / 25卷 / 8-9期
关键词：
fatigue crack propagation; short cracks; threshold; fatigue design; fatigue limit; environmental effects; variable amplitude fatigue;
D O I：
10.1046/j.1460-2695.2002.00568.x
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The propagation and non-propagation conditions of cracks with crack closure and without crack closure are investigated in various materials. It was found that there exist lower limits for the crack-driving force at which cracks do not propagate (da/d N is smaller than 10(-10) mm cycle (-1)) for constant and variable amplitude loading. Finally, possible reasons for the growth of cracks below such limits, which may occur in the very high-cycle regime, are discussed.
引用
收藏
页码：805 / 811
页数：7
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