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Keywords: degradation
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Proceedings Papers
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-153
... displacement amplitude cyclic amplitude stiffness cycling prototype degradation Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-452
... be degraded by 30-70% and fatigue crack growth rate increased by more than 10x (San Marchi, et.al., 2022). High pressure CO2 pipelines due to the explosive decompression of CO2 during a rupture can very quickly release a very significant volume of CO2 gas than that of an equivalent explosion in a natural gas...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-186
... ABSTRACT The soft clay surrounding the laterally-loaded offshore piles experiences remolding and softening under cyclic laterally loading. The spatial distribution of damage of soft clays is essential for the degradation of cyclic ultimate bearing capacity of the pile foundation. In this work...
Proceedings Papers
Xizhao Wang, Xuekang Gu, Jun Ding, Nan Zhao, Yuchao Chen, Qibin Wang, Zilin Li, Zhengwei Zhang, Jun Yu
Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-463
... ABSTRACT Time-variant reliability attracts attention from industry when it comes with corrosion and fatigue in offshore floating structures. With the long-term serviceability of large floating structures, the general or pit corrosion may occur in stiffened plates and cause degradation...
Proceedings Papers
Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2157
... offshore technology conference degradation soil strength cohesive soil reservoir characterization displacement pile foundation randolph stiffness laterally Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June 20 25...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2158
... using CFRP because of its low cost, simple and quick process (Michael BJ, 2009). However, the repair will be affected by factors such as long time loads and seawater immersion. With the increase of the service time, the repair effect will degrade, it may even cause the failure of the pipe, resulting...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-021
... by tensile test. Based on the experimental data, it is concluded that the severely corroded reinforced concrete did not conform to the plane section assumption and a strain hysteresis phenomenon existed. The corrosion of steel bars was serious, the mechanical properties of the steel were degraded, which led...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-397
... a lot of ocean environment issues, e.g. the deterioration of water quality of estuaries, coastal erosion, bay siltation, ecological degradation. China has become one of the countries whose coastal environment is severely damaged, and to solve the problem of coastal zone damage has been attached more...
Proceedings Papers
Gianluca Zorzi, Thomas Richter, Fabian Kirsch, Anders Hust Augustesen, Martin Underlin Østergaard, Søren Peder Hyldal Sørensen
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-271
... ABSTRACT Cyclic loading could lead to progressive degradation of soil in terms of plastic strain accumulation, pore pressure build up and changes in soil strength and stiffness. The present paper outlines an explicit method to predict the accumulated foundation displacement under cyclic...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-598
.... Observations on the degradation with load demand and number of loading cycles to failure are presented. Preliminary analysis on the soil-pile degradation pattern with depth and cyclic loading is also presented through soil-shaft stiffnesses computed for discretized pile elements. INTRODUCTION Understanding...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-704
... analyses of bucket foundations installed in sands and clays. An empirical formulation which captures the stiffness degradation observed in cyclic triaxial and simple shear tests is implemented into the finite element analysis in the form of a user subroutine. It is shown that the cyclically accumulated...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-130
... leonovich concrete berth structure degradation humidity destruction stress intensity factor surface tension calculation marine capillary pore sakhalin island durability gel pore concrete structure corrosion pore carbonation Degradation of Marine Reinforced Concrete Berth...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-321
... Capacity Degradation Method for Driven Steel Piles under Cyclic Axial Loading Martin Achmus, Khalid Abdel-Rahman, Dominik Schaefer Institute for Geotechnical Engineering, Leibniz University Hannover, Germany. Yu-Shu Kuo, Chih-Yin Chung, Yu-Hsiu Tseng Department of Hydraulic and Ocean Engineering...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-668
... ovality and the collapse pressure after such cyclic bending deformation. In addition, the applicability of a conventional formula is discussed for the collapse pressure prediction. ovality wall thickness formula deepwater full scale bending-unbending test hf-erw line pipe degradation...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-132
... dioxide associates with the dissolved calcium hydroxide, neutralizes it and causes a loss of mass of the concrete surface layer whilst enhancing degradation. A degradation model for environmental conditions of Sakhalin offshore is presented. The main function proposed was to take into account...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-450
... Abstract A number of offshore installations worldwide are approaching or have already exceeded their original design life. Therefore, it is essential to check feasibilities of life extension, estimate remaining life and residual capacities. To address the above need, several degradation...
Proceedings Papers
Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-862
... sea wave calibration degradation camera calibration far-infrared image sea wave height measurement method haze artificial intelligence camera system fusion image sensor tsunami calculation measurement method image measurement technique cunwei lu wave extraction A Sea Wave...
Proceedings Papers
Yasumi Kawamura, Yasuhide Kanou, Naoki Osawa, Norio Yamamoto, Kazuhiko Shiotani, Kazuyuki Kashima, Shinji Sakashita, Kenji Katoh, Sho Takano
Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-820
... under-film corrosion well integrity degradation corroded surface metals & mining subsurface corrosion paik steel simulation engineering coated steel plate corrosion depth exposure test pipeline corrosion characterization materials and corrosion flowline corrosion corrosion resistant...
Proceedings Papers
Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-707
... Abstract Mobile offshore drilling units (MODU), such as semi-submersibles, usually employ multiple azimuth thrusters to maintain their position during drilling or exploration. However it is reported that there is a considerable degradation compared with its open water performance...
Proceedings Papers
Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-577
... of MW rocks. variation degradation absorption freeze-thaw cycle strength classification freeze-thaw test dearman p-wave velocity compressive strength grade ii specimen upstream oil & gas grade iii antarctica freeze-thaw process initial value reservoir characterization...
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