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Experimental Behaviors of Constraint Effect A2 depending on Opening Displacement Measurement near Crack Front for SS400.  

Han, Min-Su (The Graduate School, Division of Marine Engineering, Mokpo Maritime University)
Jang, Seok-Ki (Division of Marine Engineering, Mokpo Maritime University)
Publication Information
Korean Journal of Metals and Materials / v.46, no.6, 2008 , pp. 345-350 More about this Journal
Abstract
The magnitude of constraint effect $A_2$ value was experimentally estimated by using crack tip opening displacement(CTOD) between elastic and plastic regions near crack tip front for CT specimen with $25.4t{\ss}{\AE}$ SS400 steel. The constraint effect, $A_2$ was dependent on specimen configuration and on the measured positions of CTOD near crack front. $A_2$ should be estimated using the opening displacement calculated within crack front plastic region. If not, it's not reliable to evaluate of constraint effect at crack growth initiation in this paper.
Keywords
CTOD; crack tip opening displacement; constraint effect $A_2$ value; ${\delta}_5$ method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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