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Pipeline Integrity Management Under Geohazard Conditions (PIMG)

By
Mamdouh M. Salama
Mamdouh M. Salama
ConocoPhillips
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Yong-Yi Wang
Yong-Yi Wang
CRES
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Don West
Don West
Golder
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Alexander McKenzie-Johnson
Alexander McKenzie-Johnson
Geosyntec
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Azam B A-Rahman
Azam B A-Rahman
Petronas
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Guiyi Wu
Guiyi Wu
TWI
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Jens Petter Tronskar
Jens Petter Tronskar
DNVGL
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Jim Hart
Jim Hart
SSD Inc
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Bernt J. Leira
Bernt J. Leira
NTNU
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ISBN:
9780791861998
No. of Pages:
412
Publisher:
ASME Press
Publication date:
2020

Strain-based design and fracture assessment of pipelines is becoming increasingly important because large pipeline networks tend to be placed in challenging environments where they might undergo large strains due to ground movement, for example. The integrity of pipeline girth welds in such conditions should be assessed using strain-based design and fracture assessment approaches instead of traditional stress-based engineering critical assessment. This paper describes two large-scale pipe tests containing girth welds with notches at the weld centreline subject to large strains with and without internal pressure, respectively. The experimental results are used to investigate existing strain-based design and assessment methods....

INTRODUCTION
LARGE-SCALE EXPERIMENTS
STRAIN-BASED APPROACHES
RESULTS AND DISCUSSION
CONCLUSIONS AND FUTURE RECOMMENDATIONS
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