Structural integrity and life assessment of oil drilling rig pipes using analytical method
Abstract
Structural integrity and life assessment of oil rig pipes using analytical method is presented and applied to an oil drilling rig pipe. The new concept based on risk evaluation according to probability and consequence of failure is used. Analytical expressions for surface cracks, provided by Raju and Newman, are used to calculate stress intensity factors for different crack geometries. Furthermore, the rig welded pipe failure probability is estimated by simple application of the Failure Assessment Diagram (FAD) and used together with potential consequences to evaluate the risk level by application of risk matrix. The same logic is employed in the case of cyclic loading, i.e. fatigue crack growth, by using Paris law to calculate crack length depending on the number of cycles. Simple numerical integration is applied to take into account the change of the geometry parameter Y due to increasing depth of a surface crack.
Keywords:
Paris law / oil rig pipe / failure assessment diagram / analytical methodsSource:
Structural Integrity and Life, 2022, 22, 1, 63-68Publisher:
- Institut za ispitivanje materijala, Beograd
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200213 (Innovation Center of the Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200213)
Collections
Institution/Community
Inovacioni centarTY - JOUR AU - Zaidi, Radzeya AU - Sedmak, Aleksandar AU - Kirin, Snežana AU - Martić, Igor AU - Šarkoćević, Živče PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3820 AB - Structural integrity and life assessment of oil rig pipes using analytical method is presented and applied to an oil drilling rig pipe. The new concept based on risk evaluation according to probability and consequence of failure is used. Analytical expressions for surface cracks, provided by Raju and Newman, are used to calculate stress intensity factors for different crack geometries. Furthermore, the rig welded pipe failure probability is estimated by simple application of the Failure Assessment Diagram (FAD) and used together with potential consequences to evaluate the risk level by application of risk matrix. The same logic is employed in the case of cyclic loading, i.e. fatigue crack growth, by using Paris law to calculate crack length depending on the number of cycles. Simple numerical integration is applied to take into account the change of the geometry parameter Y due to increasing depth of a surface crack. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Structural integrity and life assessment of oil drilling rig pipes using analytical method EP - 68 IS - 1 SP - 63 VL - 22 UR - https://hdl.handle.net/21.15107/rcub_machinery_3820 ER -
@article{ author = "Zaidi, Radzeya and Sedmak, Aleksandar and Kirin, Snežana and Martić, Igor and Šarkoćević, Živče", year = "2022", abstract = "Structural integrity and life assessment of oil rig pipes using analytical method is presented and applied to an oil drilling rig pipe. The new concept based on risk evaluation according to probability and consequence of failure is used. Analytical expressions for surface cracks, provided by Raju and Newman, are used to calculate stress intensity factors for different crack geometries. Furthermore, the rig welded pipe failure probability is estimated by simple application of the Failure Assessment Diagram (FAD) and used together with potential consequences to evaluate the risk level by application of risk matrix. The same logic is employed in the case of cyclic loading, i.e. fatigue crack growth, by using Paris law to calculate crack length depending on the number of cycles. Simple numerical integration is applied to take into account the change of the geometry parameter Y due to increasing depth of a surface crack.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Structural integrity and life assessment of oil drilling rig pipes using analytical method", pages = "68-63", number = "1", volume = "22", url = "https://hdl.handle.net/21.15107/rcub_machinery_3820" }
Zaidi, R., Sedmak, A., Kirin, S., Martić, I.,& Šarkoćević, Ž.. (2022). Structural integrity and life assessment of oil drilling rig pipes using analytical method. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 22(1), 63-68. https://hdl.handle.net/21.15107/rcub_machinery_3820
Zaidi R, Sedmak A, Kirin S, Martić I, Šarkoćević Ž. Structural integrity and life assessment of oil drilling rig pipes using analytical method. in Structural Integrity and Life. 2022;22(1):63-68. https://hdl.handle.net/21.15107/rcub_machinery_3820 .
Zaidi, Radzeya, Sedmak, Aleksandar, Kirin, Snežana, Martić, Igor, Šarkoćević, Živče, "Structural integrity and life assessment of oil drilling rig pipes using analytical method" in Structural Integrity and Life, 22, no. 1 (2022):63-68, https://hdl.handle.net/21.15107/rcub_machinery_3820 .