Effects of Grain Size on Crack Aspect Ratio and Crack Initiation Limit in Notched Specimen of Austenitic Stainless Steel (JIS SUS304)
2014 ◽
Vol 620
◽
pp. 438-442
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Keyword(s):
Aspect ratio is a key factor to calculate stress intensity factor (SIF) K using fracture mechanics. Cracks are approximated to be semi-circle or semi-ellipse in simple calculation, however, their empirical shapes are changed by stress concentration. In this study, in order to calculate K simply and precisely, a new method to predict fatigue crack initiation stress, σw1 of austenitic stainless steel with modified aspect ratio is discussed. The new method succeeded to predict σw1 within 20% error from empirical values using average austenite grain sizes.
2014 ◽
Vol 563
◽
pp. 80-84
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Keyword(s):
2015 ◽
Vol 75
◽
pp. 57-68
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Keyword(s):
2015 ◽
Vol 2015
(0)
◽
pp. _G0301301--_G0301301-
2017 ◽
Vol 100
◽
pp. 84-93
◽
2000 ◽
Vol 19
(1-4)
◽
pp. 87-96
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Keyword(s):
1996 ◽
Vol 36
(7)
◽
pp. 862-866
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