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Cracking in D6ac steel
被引：7
|作者：
Jones, R.
[1
,2
]
Forth, S. C.
[3
]
机构：
[1] Monash Univ, DSTO Ctr Expertise Struct Mech, Dept Mech & Aerosp Engn, Clayton, Vic 3800, Australia
[2] Monash Univ, CRC Railway Technol, Dept Mech & Aerosp Engn, Clayton, Vic 3800, Australia
[3] NASA, Lyndon B Johnson Space Ctr, Houston, TX USA
关键词：
Crack closure;
Fatigue crack growth;
Similitude;
Frost-Dugdale;
D6ac steel;
FATIGUE CRACKS;
GROWTH;
D O I：
10.1016/j.tafmec.2009.12.005
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper examines the results of an extensive test program undertaken to study crack growth in D6ac steel and shows that in each case the increment in the crack length per cycle (da/dN) conforms to the Generalised Frost-Dugdale crack growth law. This is found to be true for both constant K(max), constant R ratio load increasing, and compression compression pre-cracking tests in the L-T, T-L and the S-T directions. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：61 / 64
页数：4
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