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Bending cycle

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CT Ballooning as OD growth rate per CT <span class="search-highlight">bending</span> <span class="search-highlight">cycle</span> for HT-95 and conventi...
Published: 21 March 2017
Figure 8 CT Ballooning as OD growth rate per CT bending cycle for HT-95 and conventional HS-90 grades. More
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Proceedings Papers

Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-168
... In this work a large scale bending test, representative of conditions experienced under reeling of steel pipelines, is discussed. The pipeline material is an X65 steel and the pipe has a diameter of 273.1 mm (10.75") wall thickness of 14.3 mm. The pipe was subject to multi-cycle reverse bending...
Proceedings Papers

Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-407
... expansion coefficient between two materials and this joint residual stress affects the bending strength significantly: Also in order to use the joint material as the structural material, the study about the fatigue of thermal cycle of actual use statement is necessary Therefore, to ensure security...
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Strain Correlation – CRA vs BS – 3 rd  <span class="search-highlight">Bend</span> <span class="search-highlight">Cycle</span> to Straightener Curvature...
Published: 09 August 2021
Figure 17 Strain Correlation – CRA vs BS – 3 rd Bend Cycle to Straightener Curvature More
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Strain Correlation – CRA vs CS – 3 rd  <span class="search-highlight">Bend</span> <span class="search-highlight">Cycle</span> to Straightener Curvature...
Published: 18 March 2022
Figure 16 Strain Correlation – CRA vs CS – 3 rd Bend Cycle to Straightener Curvature – no significant change of slope evident (Ref 5) More
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Results from the low <span class="search-highlight">cycle</span> <span class="search-highlight">bending</span> fatigue testing of SN 44410-8000. The bl...
Published: 27 March 2018
Figure 7 Results from the low cycle bending fatigue testing of SN 44410-8000. The black line represents the expected fatigue life for the parent tubing (black dots represent actual values), and the red line represents the expected fatigue life for the bias welded tubing (red dots represent actual ... More
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Results from the low <span class="search-highlight">cycle</span> <span class="search-highlight">bending</span> fatigue testing of SN 44118-0000. The bl...
Published: 27 March 2018
Figure 10 Results from the low cycle bending fatigue testing of SN 44118-0000. The black line represents the expected fatigue life for the parent tubing (black dots represent actual values), and the red line represents the expected fatigue life for the bias welded tubing (red dots represent actual... More
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Results from the low <span class="search-highlight">cycle</span> <span class="search-highlight">bending</span> fatigue testing of SN 43396-8010. The bl...
Published: 27 March 2018
Figure 11 Results from the low cycle bending fatigue testing of SN 43396-8010. The black line represents the expected fatigue life for the parent tubing (black dots represent actual values), and the red line represents the expected fatigue life for the bias welded tubing (red dots represent actual... More
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Results from the low <span class="search-highlight">cycle</span> <span class="search-highlight">bending</span> fatigue testing of SN 44648-0000. The bl...
Published: 27 March 2018
Figure 12 Results from the low cycle bending fatigue testing of SN 44648-0000. The black line represents the expected fatigue life for the parent tubing (black dots represent actual values), and the red line represents the expected fatigue life for the bias welded tubing (red dots represent actual... More
Images
Results from the low <span class="search-highlight">cycle</span> <span class="search-highlight">bending</span> fatigue testing of SN 43824-8010. The bl...
Published: 27 March 2018
Figure 13 Results from the low cycle bending fatigue testing of SN 43824-8010. The black line represents the expected fatigue life for the parent tubing (black dots represent actual values), and the red line represents the expected fatigue life for the bias welded tubing (red dots represent actual... More
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(a) Schematic o flow-<span class="search-highlight">cycle</span> fatigue <span class="search-highlight">bending</span> events (source: Coiled Tubing Me...
Published: 18 March 2019
Figure 24 (a) Schematic o flow-cycle fatigue bending events (source: Coiled Tubing Mechanics Research Consortium). (b) Example of low-cycle fatigue life reduction due to H2S exposure ( Padron T., 2010 ). More
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-577
... ABSTRACT The reel-lay method is widely used for installation of subsea pipelines. Reeled pipelines are typically subjected to two reverse plastic bending cycles. However, they may occasionally see up to five bending cycles during a contingency re-reeling operation. Concerns have been expressed...
Proceedings Papers

Paper presented at the SNAME 26th Offshore Symposium, April 6–7, 2021
Paper Number: SNAME-TOS-2021-05
... remains prohibitive, for example, a single bending cycle on modern day multi-core computers typically requires 24-48 hours. Therefore, any successful implementation of a flexible riser digital twin requires an accelerated solver capable of real-time computation of 1000s of bending cycle inputs...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, November 2–6, 2020
Paper Number: OTC-30259-MS
... it. To approximate the plastic strain developed due to the pressure applied (an approximate analytical equation developed), an FEA study has been done for plastic strain variation with respect to different bend radii. Also, it has been observed through FEA that repeated pressurization cycles do not cause any...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, April 2–4, 1995
Paper Number: SPE-29461-MS
... strokes (one stroke means one round trip of coiled tubing in and out of the well, including one bending cycle on and off the reel and two bending cycle on and off the gooseneck) increase for engineering operations, the coiled tubing diameter grows gradually, and small cracks develop on the coiled tubing...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30700-MS
... technical expertise in modelling the highly complex behaviour of the EHTF cabling system as it experiences multiple bending cycles due to reeling. The paper highlights some important key results describing the behaviour of the wires and consequent predictions of integrity which have since been verified...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1988
Paper Number: OTC-5720-MS
...-, medium-, and low-load cyclic ten- sion fatigue tests. Both ropes survived 2,000,000 cycles without failing at low load cyclic t~nsions of 8% to 25% of breaking strength. Bending fatigue tests were also performed on a variety of rope sizes, material, and construction combinations. Results indicate...

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