Contribution of Stable Crack Extension to Variable Amplitude Fatigue Crack Growth

被引：0
作者：
Sunder, R. [1 ]
机构：
[1] ITW India Pvt Ltd, BISS Div, 497E,14th Cross,4th Phase,Peenya Ind Area, Bangalore 560058, India
来源：
MATERIALS PERFORMANCE AND CHARACTERIZATION | 2023年 / 12卷 / 01期
关键词：
stable crack extension; fatigue crack extension; monotonic plastic zone; variable-amplitude loading;
D O I：
10.1520/MPC20220065
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Variable-amplitude fatigue is invariably associated with periodic tensile overloads that can induce static crack extension component in addition to fatigue crack growth. A simple equation is proposed to account for the static crack growth component. The procedure is validated against fractographic evidence from a programmed load sequence. Accounting for static crack extension is likely to improve cycle-by-cycle crack growth modeling and may also explain scale effects.
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页码：1 / 8
页数：8
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