Abstract
This paper proposes J-integral and crack opening displacement (COD) estimation equations based on the reference stress method for circumferential through-wall cracked elbows under in-plane bending. For best estimates of J and COD, an optimized reference load, used to define the reference stress, is given. The proposed equations are compared with detailed finite element results. They are further validated against eight published full-scale pipe test data. Comparison of crack initiation and maximum loads shows good agreement.
Original language | English |
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Pages (from-to) | 303-317 |
Number of pages | 15 |
Journal | Engineering Fracture Mechanics |
Volume | 142 |
DOIs | |
Publication status | Published - 2015 Jan 1 |
Externally published | Yes |
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Keywords
- Circumferential through-wall crack
- Crack opening displacement
- Elbow
- Experimental validation
- J-integral
- Leak-before-break
- Optimized reference load
- Reference stress method
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Reference stress based J and COD estimation of circumferential through-wall cracked elbows under in-plane bending. / Kim, Chul Goo; Bae, Kyung Dong; Kim, Yun Jae; Oh, Young Jin; Budden, Peter J.
In: Engineering Fracture Mechanics, Vol. 142, 01.01.2015, p. 303-317.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reference stress based J and COD estimation of circumferential through-wall cracked elbows under in-plane bending
AU - Kim, Chul Goo
AU - Bae, Kyung Dong
AU - Kim, Yun Jae
AU - Oh, Young Jin
AU - Budden, Peter J.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - This paper proposes J-integral and crack opening displacement (COD) estimation equations based on the reference stress method for circumferential through-wall cracked elbows under in-plane bending. For best estimates of J and COD, an optimized reference load, used to define the reference stress, is given. The proposed equations are compared with detailed finite element results. They are further validated against eight published full-scale pipe test data. Comparison of crack initiation and maximum loads shows good agreement.
AB - This paper proposes J-integral and crack opening displacement (COD) estimation equations based on the reference stress method for circumferential through-wall cracked elbows under in-plane bending. For best estimates of J and COD, an optimized reference load, used to define the reference stress, is given. The proposed equations are compared with detailed finite element results. They are further validated against eight published full-scale pipe test data. Comparison of crack initiation and maximum loads shows good agreement.
KW - Circumferential through-wall crack
KW - Crack opening displacement
KW - Elbow
KW - Experimental validation
KW - J-integral
KW - Leak-before-break
KW - Optimized reference load
KW - Reference stress method
UR - http://www.scopus.com/inward/record.url?scp=84936756584&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84936756584&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2015.06.022
DO - 10.1016/j.engfracmech.2015.06.022
M3 - Article
AN - SCOPUS:84936756584
VL - 142
SP - 303
EP - 317
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
ER -