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Azad, Samdani, 1994-. Effect of corrosion on fatigue assessments of offshore monopile. Master's Degree(Civil Engineering ). Mahidol University. Mahidol University Library and Knowledge Center. : Mahidol University, 2019.
Effect of corrosion on fatigue assessments of offshore monopile
Name: Azad, Samdani, 1994-
LCSH:
Wind turbines
Abstract:
Monopile is the simplest offshore structure that is economically applied in shallow water depth, especially less than 30 meters. Typically, the structure is made of a cylindrical steel tube to reduce the hydrodynamics force. It is penetrated into the seabed up to certain depth depending on the loadings and soil conditions. However, there are some drawbacks of monopile structure because the structure has to be encountered with the stress concentration at fixed support due to the bending moment under environmental loading. Fatigue is a common phenomenon for offshore structures because the structure is subjected to the cyclic loading for long term from wind and wave loads, etc. Salinity of sea water can cause the corrosion and diminish the life span of structures. This is because, it affects the cross sectional area of structural elements and it causes the lessening of fatigue life. This research illustrates the effect of corrosion in fatigue life of the monopile offshore structures. The monopile is modeled by using finite element method with shell elements to perform fatigue analysis. The selected monopile is employed for supporting substation in offshore wind farm. Wave elevation spectra and force spectra are generated to incorporate the analysis. Stress response spectra are obtained from the analysis. Time series of stresses are obtained from the response spectra using inverse fast Fourier transformation. Rainflow counting algorithm is used to count the stress cycles. The corrosion in the fatigue degradation is considered by SN curve with corrosion from previous study. Fatigue damage is determined afterwards considering corrosion loss based on the SN curves. Palmgren-Miner's rule is used to compute the accumulated the fatigue damage. The results demonstrate the decreasing of fatigue life due to corrosion effect of the monopile and is also associated with the effect of temperature and presence of oxygen
Mahidol University. Mahidol University Library and Knowledge Center
Address:
NAKHONPATHOM
Email:
liwww@mahidol.ac.th
Name: Wonsiri Punurai
Role:
Thesis Advisors
Name: Teraphan Ornthammarath
Role:
Thesis Advisors
Name: Chana Sinsabvarodom
Role:
Thesis Advisors
Name: Pornpong Asavadorndeja
Role:
Thesis Advisors
Created:
2019
Modified:
2024-02-02
Issued:
2024-02-02
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of Engineering
Level: Master's Degree
Descipline: Civil Engineering
Grantor: Mahidol University
©copyrights Mahidol University
RightsAccess:
ใช้เวลา
-0.484821 วินาที
Azad, Samdani, 1994-
| Title | Contributor | Type |
|---|---|---|
| Effect of corrosion on fatigue assessments of offshore monopile
มหาวิทยาลัยมหิดล Azad, Samdani, 1994- | Wonsiri Punurai Teraphan Ornthammarath Chana Sinsabvarodom Pornpong Asavadorndeja | วิทยานิพนธ์/Thesis |
Wonsiri Punurai
| Title | Creator | Type and Date Create |
|---|---|---|
| Shear strength of fiber reinforced cementitious composite deep beams
มหาวิทยาลัยมหิดล Praveen Chompreda;Thatchavee Leelawat;Wonsiri Punurai | Pisud Witayasuwan | วิทยานิพนธ์/Thesis |
| Development of construction guidelines to prevent out of plane failure of infill wall from seismic load
มหาวิทยาลัยมหิดล Wonsiri Punurai;Teraphan Ornthammarath | Khematat Kanjanapisarn | วิทยานิพนธ์/Thesis |
| Effect of corrosion on fatigue assessments of offshore monopile
มหาวิทยาลัยมหิดล Wonsiri Punurai;Teraphan Ornthammarath;Chana Sinsabvarodom;Pornpong Asavadorndeja | Azad, Samdani, 1994- | วิทยานิพนธ์/Thesis |
Teraphan Ornthammarath
| Title | Creator | Type and Date Create |
|---|---|---|
| Development of construction guidelines to prevent out of plane failure of infill wall from seismic load
มหาวิทยาลัยมหิดล Wonsiri Punurai;Teraphan Ornthammarath | Khematat Kanjanapisarn | วิทยานิพนธ์/Thesis |
| Effect of corrosion on fatigue assessments of offshore monopile
มหาวิทยาลัยมหิดล Wonsiri Punurai;Teraphan Ornthammarath;Chana Sinsabvarodom;Pornpong Asavadorndeja | Azad, Samdani, 1994- | วิทยานิพนธ์/Thesis |
| Pulse-like effects of near-fault earthquakes on reinforced concrete buildings in Mandalay city, Myanmar
มหาวิทยาลัยมหิดล Teraphan Ornthammarath;Yasothorn Sapsathiarn | Yan, Naung Ko, 1990- | วิทยานิพนธ์/Thesis |
Chana Sinsabvarodom
| Title | Creator | Type and Date Create |
|---|---|---|
| Effect of corrosion on fatigue assessments of offshore monopile
มหาวิทยาลัยมหิดล Wonsiri Punurai;Teraphan Ornthammarath;Chana Sinsabvarodom;Pornpong Asavadorndeja | Azad, Samdani, 1994- | วิทยานิพนธ์/Thesis |
Pornpong Asavadorndeja
| Title | Creator | Type and Date Create |
|---|---|---|
| Effect of corrosion on fatigue assessments of offshore monopile
มหาวิทยาลัยมหิดล Wonsiri Punurai;Teraphan Ornthammarath;Chana Sinsabvarodom;Pornpong Asavadorndeja | Azad, Samdani, 1994- | วิทยานิพนธ์/Thesis |