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Comparative Study on Crack Tip Opening Displacment R-Curve and R-Curve
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 Title & Authors
Comparative Study on Crack Tip Opening Displacment R-Curve and R-Curve
Kim, Eom-Gi; Nam, Seung-Hun; Jin, Uk; Go, Seong-Wi;
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 Abstract
Since the examination of CTOD problem revealed that the discrepancy among CTOD's was a matte., of definition, the relationships among parameters based on different definitions have been studied Particularly, the relationship between BS R-curve based on BS 7448 and R-curve based on the recently introduced 5 parameter was investigated in this research. For the comparison, compact tension specimens of used 1Cr-0.5Mo steel, heat treated 1Cr-0.5Mo steel to mimic the new one, A12024-T6, and A12024-T351 were prepared and tested. Consequently, the relationship between 5 and BS R-curves for tested materials were established by shifting the rotational center which could determined by rotation factor and ligament size.
 Keywords
CTOD;R-Curve;BS 7448;J Integral;DC Potential Drop Method;
 Language
Korean
 Cited by
 References
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