Reference stress based J and COD estimation of circumferential through-wall cracked elbows under in-plane bending

•Circumferential through-wall cracked elbows under in-plane bending is considered.•J and COD estimation equations are proposed based on the reference stress method.•The proposed equations are compared with detailed finite element results.•They are validated against eight published full-scale pipe te...

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Veröffentlicht in:	Engineering fracture mechanics 2015-07, Vol.142, p.303-317
Hauptverfasser:	Kim, Chul-Goo, Bae, Kyung-Dong, Kim, Yun-Jae, Oh, Young-Jin, Budden, Peter J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Bending Circumferences Circumferential through-wall crack Crack initiation Crack opening displacement Elbow Elbows Experimental validation Fracture mechanics J-integral Leak-before-break Mathematical analysis Optimized reference load Reference stress method Stresses
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