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Estimation of $$J{-}R$$ J - R Curves for Small-Sized COEC Specimens and Its Application ...

Estimation of $$J{-}R$$ J - R Curves for Small-Sized COEC Specimens and Its Application ... Abstract The normalization method has been employed to estimate the J–resistance (\(J{-}R\)) curves for C-shaped outside edge-notched compression (COEC) specimens of SA-508 steel. The COEC specimens present the lowest \(J{-}R\) curves in comparison with other three types of specimens. Based on the \(J{-}Q{-}M\) method, the constraint parameter Q determined at the mid-plane in the through-thickness direction of the specimen is used to approximately quantify the three-dimensional crack-tip constraint for COEC specimens. Combining with the previous experiments on \(J{-}R\) curves, the constraint-corrected \(J{-}R\) curves for SA-508 steel specimens are given, which may be used to predict the fracture toughness of actual cracked components in structural integrity assessment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Acta Mechanica Solida Sinica" Springer Journals

Estimation of $$J{-}R$$ J - R Curves for Small-Sized COEC Specimens and Its Application ...

He, G. W.; Bao, C.; Cai, L. X.; Wu, Y. J.
"Acta Mechanica Solida Sinica" , Volume 32 (3): 16 – Jun 1, 2019
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Publisher
Springer Journals
Copyright
2019 The Chinese Society of Theoretical and Applied Mechanics
ISSN
0894-9166
eISSN
1860-2134
DOI
10.1007/s10338-019-00089-4
Publisher site
See Article on Publisher Site

Abstract

Abstract The normalization method has been employed to estimate the J–resistance (\(J{-}R\)) curves for C-shaped outside edge-notched compression (COEC) specimens of SA-508 steel. The COEC specimens present the lowest \(J{-}R\) curves in comparison with other three types of specimens. Based on the \(J{-}Q{-}M\) method, the constraint parameter Q determined at the mid-plane in the through-thickness direction of the specimen is used to approximately quantify the three-dimensional crack-tip constraint for COEC specimens. Combining with the previous experiments on \(J{-}R\) curves, the constraint-corrected \(J{-}R\) curves for SA-508 steel specimens are given, which may be used to predict the fracture toughness of actual cracked components in structural integrity assessment.

Journal

"Acta Mechanica Solida Sinica" – Springer Journals

Published: Jun 1, 2019

Keywords: Theoretical and Applied Mechanics; Surfaces and Interfaces, Thin Films; Classical Mechanics

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