Abstract
This paper presents experimental validation of two reference stress based methods for circumferential cracked pipes. One is the R6 method where the reference stress is defined by the plastic limit load. The other is the enhanced reference stress method, recently proposed by the authors, where the reference stress is defined by the optimized reference load. Using thirty-eight published pipe test data, the predicted maximum instability loads according to both methods are compared with the experimental ones for pipes with circumferential through-thickness cracks and with part circumferential surface cracks. It is found that the R6 method gives conservative estimates of the maximum loads for all cases. Ratios of the experimental maximum load to the predicted load range from 0.54 to 0.98. On the other hand, the proposed method gives overall closer maximum loads than R6, compared to the experimental data. However, for part through-thickness surface cracks, the estimated loads were slightly non-conservative for four cases, and possible reasons were fully discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 71-78 |
| Number of pages | 8 |
| Journal | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
| Volume | 461 |
| DOIs | |
| Publication status | Published - 2003 Nov 19 |
| Externally published | Yes |
| Event | 2003 ASME Pressure Vessels and Piping Conference - Cleveland, OH, Afghanistan Duration: 2003 Jul 20 → 2003 Jul 24 |
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ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Elastic-plastic fracture mechanics assessment of test data for circumferential cracked pipes. / Huh, Nam Su; Shim, Do Jun; Kim, Yun Jae; Kim, Young Jin.
In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Vol. 461, 19.11.2003, p. 71-78.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Elastic-plastic fracture mechanics assessment of test data for circumferential cracked pipes
AU - Huh, Nam Su
AU - Shim, Do Jun
AU - Kim, Yun Jae
AU - Kim, Young Jin
PY - 2003/11/19
Y1 - 2003/11/19
N2 - This paper presents experimental validation of two reference stress based methods for circumferential cracked pipes. One is the R6 method where the reference stress is defined by the plastic limit load. The other is the enhanced reference stress method, recently proposed by the authors, where the reference stress is defined by the optimized reference load. Using thirty-eight published pipe test data, the predicted maximum instability loads according to both methods are compared with the experimental ones for pipes with circumferential through-thickness cracks and with part circumferential surface cracks. It is found that the R6 method gives conservative estimates of the maximum loads for all cases. Ratios of the experimental maximum load to the predicted load range from 0.54 to 0.98. On the other hand, the proposed method gives overall closer maximum loads than R6, compared to the experimental data. However, for part through-thickness surface cracks, the estimated loads were slightly non-conservative for four cases, and possible reasons were fully discussed.
AB - This paper presents experimental validation of two reference stress based methods for circumferential cracked pipes. One is the R6 method where the reference stress is defined by the plastic limit load. The other is the enhanced reference stress method, recently proposed by the authors, where the reference stress is defined by the optimized reference load. Using thirty-eight published pipe test data, the predicted maximum instability loads according to both methods are compared with the experimental ones for pipes with circumferential through-thickness cracks and with part circumferential surface cracks. It is found that the R6 method gives conservative estimates of the maximum loads for all cases. Ratios of the experimental maximum load to the predicted load range from 0.54 to 0.98. On the other hand, the proposed method gives overall closer maximum loads than R6, compared to the experimental data. However, for part through-thickness surface cracks, the estimated loads were slightly non-conservative for four cases, and possible reasons were fully discussed.
UR - http://www.scopus.com/inward/record.url?scp=0242442555&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0242442555&partnerID=8YFLogxK
U2 - 10.1115/PVP2003-1992
DO - 10.1115/PVP2003-1992
M3 - Conference article
AN - SCOPUS:0242442555
VL - 461
SP - 71
EP - 78
JO - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
JF - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
SN - 0277-027X
ER -