Abstract
In the previous work carried out by the authors, a new method to estimate failure strength of a pipe with local wall thinning subject to either internal pressure or global bending has been proposed. The proposed method was based on the equivalent stress averaged over the minimum ligament in the locally wall thinned region, and the simple scheme to estimate the equivalent stress in the minimum ligament was proposed, based on the reference stress concept for creep stress analysis. This paper extends the new method to combined internal pressure and global bending. The proposed method is validated against FE results for various geometries of local wall thinning under combined loading. The effect of internal pressure is also investigated in the present study. Comparison of maximum moments, predicted according to the proposed method, with published full-scale pipe test data for locally wall thinned pipes under combined internal pressure and global bending, shows good agreement.
| Original language | English |
|---|---|
| Pages (from-to) | 76-83 |
| Number of pages | 8 |
| Journal | Journal of Pressure Vessel Technology, Transactions of the ASME |
| Volume | 127 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2005 Feb 1 |
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Keywords
- Combined Loading
- Failure Stress
- Local Wall Thinning
- Reference Stress Approach
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Reference stress based approach to predict failure strength of pipes with local wall thinning under combined loading. / Shim, Do J.; Kim, Young J.; Kim, Yun-Jae.
In: Journal of Pressure Vessel Technology, Transactions of the ASME, Vol. 127, No. 1, 01.02.2005, p. 76-83.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reference stress based approach to predict failure strength of pipes with local wall thinning under combined loading
AU - Shim, Do J.
AU - Kim, Young J.
AU - Kim, Yun-Jae
PY - 2005/2/1
Y1 - 2005/2/1
N2 - In the previous work carried out by the authors, a new method to estimate failure strength of a pipe with local wall thinning subject to either internal pressure or global bending has been proposed. The proposed method was based on the equivalent stress averaged over the minimum ligament in the locally wall thinned region, and the simple scheme to estimate the equivalent stress in the minimum ligament was proposed, based on the reference stress concept for creep stress analysis. This paper extends the new method to combined internal pressure and global bending. The proposed method is validated against FE results for various geometries of local wall thinning under combined loading. The effect of internal pressure is also investigated in the present study. Comparison of maximum moments, predicted according to the proposed method, with published full-scale pipe test data for locally wall thinned pipes under combined internal pressure and global bending, shows good agreement.
AB - In the previous work carried out by the authors, a new method to estimate failure strength of a pipe with local wall thinning subject to either internal pressure or global bending has been proposed. The proposed method was based on the equivalent stress averaged over the minimum ligament in the locally wall thinned region, and the simple scheme to estimate the equivalent stress in the minimum ligament was proposed, based on the reference stress concept for creep stress analysis. This paper extends the new method to combined internal pressure and global bending. The proposed method is validated against FE results for various geometries of local wall thinning under combined loading. The effect of internal pressure is also investigated in the present study. Comparison of maximum moments, predicted according to the proposed method, with published full-scale pipe test data for locally wall thinned pipes under combined internal pressure and global bending, shows good agreement.
KW - Combined Loading
KW - Failure Stress
KW - Local Wall Thinning
KW - Reference Stress Approach
UR - http://www.scopus.com/inward/record.url?scp=17444416445&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17444416445&partnerID=8YFLogxK
U2 - 10.1115/1.1849228
DO - 10.1115/1.1849228
M3 - Article
VL - 127
SP - 76
EP - 83
JO - Journal of Pressure Vessel Technology, Transactions of the ASME
JF - Journal of Pressure Vessel Technology, Transactions of the ASME
SN - 0094-9930
IS - 1
ER -