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Keywords: strain concentration
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Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-444
... of weld access hole with conventional detail, as shown in the report of large-scale investigations after the earthquake (AIJ Kinki, 1997). The field-welded connections frequently require severe quality control and reinforcements by means to suppress the strain concentrations of toes of weld access holes...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-666
... position 448 Figure 16 shows the pipe deformation and the plastic strain contours in post buckling for each bending orientation. Focusing on the local buckling position shown by the strain concentration, the buckle initiates from the center of Pipe B for 0°. In other words, the pipe is collapsed...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-548
..., demonstrate non-heat-treated (NHT) ERW line pipe can be used for R-lay. upstream oil & gas reelability girth weld variation mpa piping simulation plastic strain erw pipe offshore strength mismatch strain concentration pup piping design line pipe haz girth-welded pipe pipe isope...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-634
... strain capacity pipe cold bend pipe design pipeline strain distribution strain concentration compressive strain capacity intrado mesh midstream oil & gas Compressive Strain Capacity of Cold Bend Pipes Hongyuan Chen1,2,3, Chengshuai Huang2,3, Peng Wang2,3, Qiang Chi2, ,3 Jiming Zhang2,3...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-690
..., it is necessary to demonstrate the strain capacity of pipelines under the bending deformation to keep the integrity of pipeline during laying and service (Suzuki and Endo, 2001). It is also an important part of strain-based design methodology. In general, plastic strain concentration develops when local buckling...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-664
... ABSTRACT: In a concrete coated pipeline, differential stiffness at the field joint usually results in concentration of curvature and strain under bending conditions, such as in an over- or sag-bend during an S-lay operation or in a lateral buckling situation. Strain concentration has been...
Proceedings Papers

Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-530
... the amount of ductile tearing that occurred during the test. flaw loading pipe assessment fea result toughness full scale test strain concentration specimen constraint crack growth weld scale test prediction full scale pipe bend test test result misalignment Modelling...
Proceedings Papers

Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-501
... Strain concentration is greater for pressurized pipe than for unpressurized pipe, both for girth welds with soft regions compared to the base metal and for girth welds with misalignment. Strain concentration increases with increasing internal pressure, although the increase is less than...
Proceedings Papers

Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-348
... therefore be made for both these cases. gauge procedure determination strain concentration investigation stress concentration factor classification test specimen fatigue loading design recommendation fatigue test concentration hollow section line 4 loading steel grade specimen scf...
Proceedings Papers

Paper presented at the The Sixth International Offshore and Polar Engineering Conference, May 26–31, 1996
Paper Number: ISOPE-I-96-090
... of the instrumented pipe was 26.1 mm and the concrete coating thickness was 70 mm. The purpose of the instrumentation was to monitor the overall strain distribution in the pipeline, in particular the strain concentration in the field joint, as the pipeline moves from the barge to the seabed. The instrumentation...

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