TY - JOUR
T1 - Limit Load Analysis of 90° Back-to-Back Pipe Bends with Local Wall Thinning Using the Linear Matching Method
AU - Choi, Youngjae
AU - Kim, Un
AU - Lee, Gyeongyul
AU - Wii, Dabin
AU - Kim, Baekjin
AU - Cho, Nak Kyun
N1 - Publisher Copyright:
© 2022 The Korean Society of Mechanical Engineers.
PY - 2022
Y1 - 2022
N2 - The local wall thinning of pipe bends is frequently reported during a periodic maintenance and inspection owing to erosion or corrosion caused by fluids running inside the pipeline, and this deteriorates the structural integrity of the pipeline. To evaluate the pipe bend integrity against wall thinning, many studies have been conducted on a single pipe bend case but only a few on the 90° back-to-back pipe bends. This study evaluated the structural integrity of the 90° back-to-back pipe bend that undergoes local wall thinning by presenting the limit load boundaries using the Linear Matching Method. The limit load boundaries were created for interactions of two loads, that is, internal pressures and bending moments, and demonstrated the effect of the thinning ratio on the pipe bend integrity. The study results can provide useful insight into the design and structural integrity of the 90° back-to-back pipe bend with local wall thinning.
AB - The local wall thinning of pipe bends is frequently reported during a periodic maintenance and inspection owing to erosion or corrosion caused by fluids running inside the pipeline, and this deteriorates the structural integrity of the pipeline. To evaluate the pipe bend integrity against wall thinning, many studies have been conducted on a single pipe bend case but only a few on the 90° back-to-back pipe bends. This study evaluated the structural integrity of the 90° back-to-back pipe bend that undergoes local wall thinning by presenting the limit load boundaries using the Linear Matching Method. The limit load boundaries were created for interactions of two loads, that is, internal pressures and bending moments, and demonstrated the effect of the thinning ratio on the pipe bend integrity. The study results can provide useful insight into the design and structural integrity of the 90° back-to-back pipe bend with local wall thinning.
KW - Integrity Evaluation
KW - Linear Matching Method
KW - Local Wall-Thinning
KW - Pipe Bend
KW - Plastic Collapse Limit
UR - http://www.scopus.com/inward/record.url?scp=85147550626&partnerID=8YFLogxK
U2 - 10.3795/KSME-A.2022.46.11.947
DO - 10.3795/KSME-A.2022.46.11.947
M3 - Article
AN - SCOPUS:85147550626
SN - 1226-4873
VL - 46
SP - 947
EP - 953
JO - Transactions of the Korean Society of Mechanical Engineers, A
JF - Transactions of the Korean Society of Mechanical Engineers, A
IS - 11
ER -