The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Jingzhe Pan - One of the best experts on this subject based on the ideXlab platform.
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A Monte Carlo Model for Pitting Corrosion in Phosphor Bronze Tape Used in Underground Power Transmission Cables
Corrosion, 2020Co-Authors: Lixin Zhang, Sivashangari Gnanasambandam, Maurizio Foresta, Simon P.a. Gill, Jingzhe PanAbstract:Life of underground oil-filled power transmission cables used with Phosphor Bronze tapes is greatly reduced by pitting corrosion and hence accurate prediction of the pit growth in these tapes becom...
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Corrosion fatigue of Phosphor Bronze reinforcing tapes on underground power transmission cables - Failure analysis
Engineering Failure Analysis, 2018Co-Authors: Maurizio Foresta, Sivashangari Gnanasambandam, D.p. Weston, Jingzhe Pan, Michelle Le BlancAbstract:Abstract This paper is an investigation on the failure mechanism involved in underground power transmission cables with their life limited by corrosion of Phosphor Bronze reinforcing tapes. In the present work, a detailed analysis of failed Bronze tapes in an ammonium free environment has been undertaken and corrosion fatigue failure mechanism has been identified. A detailed examination of the tape samples is carried out using 2D and 3D optical microscopy and SEM. It follows a mechanical approach that confirms corrosion fatigue as the failure mechanism. SEM images reveal that the pits present on the surface could be the starting point for the crack that eventually leads to failure. Stress calculation shows that the tape could fail only if corrosion pits are present on the tape surface. Presence of corrosion pits, multi cracks and striations on the fractured surface demonstrates corrosion fatigue cracking as the failure mechanism across the tape samples.
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Michelle Le Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of...
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Measurement and modelling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, Maurizio Foresta, Jingzhe Pan, David Weston, Le M. BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion pit depth on Phosphor Bronze tape is investigated by using Monte Carlo simulations and compared with the measured pit depth distribution of such tapes which have been in service for about 45 years. The pit depth as a function of time is modelled as () = ()^ where y is the pit depth, α and β are pitting proportionality and exponent factors. A Monte Carlo simulation is performed to generate the pit depth distribution by keeping β as constant and varying α using three parameter Generalized Extreme Value (GEV) distribution. We observed that the simple power law is capable of predicting the evolution of pit depth distribution and also the distribution under different environmental conditions. This predictive pit depth distribution model will be a valuable tool to decide the extent of pitting corrosion in Phosphor Bronze tape used in underground power transmission cables
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, Maurizio Foresta, David Weston, Le M. Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of material and eventually the failure of cables. In the present work, the combined effect on the cable failure is studied in five stages: pit initiation, pitting corrosion control, pit-crack transfer, crack propagation control, and material failure. The cable time to failure is defined as the time needed for a corrosion pit on the tape surface to transfer into a crack resulting from a cyclic fatigue load condition. The pit-crack transfer is described statistically by a pitting corrosion to crack propagation transfer probability function. The result shows that a life prediction model can convey the long-term data of cables and can predict the years of failure. Subsequently, the life prediction model is extended and tested to include crack transfer probability function
Maurizio Foresta - One of the best experts on this subject based on the ideXlab platform.
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A Monte Carlo Model for Pitting Corrosion in Phosphor Bronze Tape Used in Underground Power Transmission Cables
Corrosion, 2020Co-Authors: Lixin Zhang, Sivashangari Gnanasambandam, Maurizio Foresta, Simon P.a. Gill, Jingzhe PanAbstract:Life of underground oil-filled power transmission cables used with Phosphor Bronze tapes is greatly reduced by pitting corrosion and hence accurate prediction of the pit growth in these tapes becom...
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Corrosion fatigue of Phosphor Bronze reinforcing tapes on underground power transmission cables - Failure analysis
Engineering Failure Analysis, 2018Co-Authors: Maurizio Foresta, Sivashangari Gnanasambandam, D.p. Weston, Jingzhe Pan, Michelle Le BlancAbstract:Abstract This paper is an investigation on the failure mechanism involved in underground power transmission cables with their life limited by corrosion of Phosphor Bronze reinforcing tapes. In the present work, a detailed analysis of failed Bronze tapes in an ammonium free environment has been undertaken and corrosion fatigue failure mechanism has been identified. A detailed examination of the tape samples is carried out using 2D and 3D optical microscopy and SEM. It follows a mechanical approach that confirms corrosion fatigue as the failure mechanism. SEM images reveal that the pits present on the surface could be the starting point for the crack that eventually leads to failure. Stress calculation shows that the tape could fail only if corrosion pits are present on the tape surface. Presence of corrosion pits, multi cracks and striations on the fractured surface demonstrates corrosion fatigue cracking as the failure mechanism across the tape samples.
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Michelle Le Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of...
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measurement and modeling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Fan Li, Michelle Le BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion...
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Measurement and modelling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, Maurizio Foresta, Jingzhe Pan, David Weston, Le M. BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion pit depth on Phosphor Bronze tape is investigated by using Monte Carlo simulations and compared with the measured pit depth distribution of such tapes which have been in service for about 45 years. The pit depth as a function of time is modelled as () = ()^ where y is the pit depth, α and β are pitting proportionality and exponent factors. A Monte Carlo simulation is performed to generate the pit depth distribution by keeping β as constant and varying α using three parameter Generalized Extreme Value (GEV) distribution. We observed that the simple power law is capable of predicting the evolution of pit depth distribution and also the distribution under different environmental conditions. This predictive pit depth distribution model will be a valuable tool to decide the extent of pitting corrosion in Phosphor Bronze tape used in underground power transmission cables
Sivashangari Gnanasambandam - One of the best experts on this subject based on the ideXlab platform.
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A Monte Carlo Model for Pitting Corrosion in Phosphor Bronze Tape Used in Underground Power Transmission Cables
Corrosion, 2020Co-Authors: Lixin Zhang, Sivashangari Gnanasambandam, Maurizio Foresta, Simon P.a. Gill, Jingzhe PanAbstract:Life of underground oil-filled power transmission cables used with Phosphor Bronze tapes is greatly reduced by pitting corrosion and hence accurate prediction of the pit growth in these tapes becom...
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Corrosion fatigue of Phosphor Bronze reinforcing tapes on underground power transmission cables - Failure analysis
Engineering Failure Analysis, 2018Co-Authors: Maurizio Foresta, Sivashangari Gnanasambandam, D.p. Weston, Jingzhe Pan, Michelle Le BlancAbstract:Abstract This paper is an investigation on the failure mechanism involved in underground power transmission cables with their life limited by corrosion of Phosphor Bronze reinforcing tapes. In the present work, a detailed analysis of failed Bronze tapes in an ammonium free environment has been undertaken and corrosion fatigue failure mechanism has been identified. A detailed examination of the tape samples is carried out using 2D and 3D optical microscopy and SEM. It follows a mechanical approach that confirms corrosion fatigue as the failure mechanism. SEM images reveal that the pits present on the surface could be the starting point for the crack that eventually leads to failure. Stress calculation shows that the tape could fail only if corrosion pits are present on the tape surface. Presence of corrosion pits, multi cracks and striations on the fractured surface demonstrates corrosion fatigue cracking as the failure mechanism across the tape samples.
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Michelle Le Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of...
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measurement and modeling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Fan Li, Michelle Le BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion...
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Measurement and modelling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, Maurizio Foresta, Jingzhe Pan, David Weston, Le M. BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion pit depth on Phosphor Bronze tape is investigated by using Monte Carlo simulations and compared with the measured pit depth distribution of such tapes which have been in service for about 45 years. The pit depth as a function of time is modelled as () = ()^ where y is the pit depth, α and β are pitting proportionality and exponent factors. A Monte Carlo simulation is performed to generate the pit depth distribution by keeping β as constant and varying α using three parameter Generalized Extreme Value (GEV) distribution. We observed that the simple power law is capable of predicting the evolution of pit depth distribution and also the distribution under different environmental conditions. This predictive pit depth distribution model will be a valuable tool to decide the extent of pitting corrosion in Phosphor Bronze tape used in underground power transmission cables
Hang Zhou - One of the best experts on this subject based on the ideXlab platform.
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Michelle Le Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of...
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measurement and modeling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Fan Li, Michelle Le BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion...
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Measurement and modelling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, Maurizio Foresta, Jingzhe Pan, David Weston, Le M. BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion pit depth on Phosphor Bronze tape is investigated by using Monte Carlo simulations and compared with the measured pit depth distribution of such tapes which have been in service for about 45 years. The pit depth as a function of time is modelled as () = ()^ where y is the pit depth, α and β are pitting proportionality and exponent factors. A Monte Carlo simulation is performed to generate the pit depth distribution by keeping β as constant and varying α using three parameter Generalized Extreme Value (GEV) distribution. We observed that the simple power law is capable of predicting the evolution of pit depth distribution and also the distribution under different environmental conditions. This predictive pit depth distribution model will be a valuable tool to decide the extent of pitting corrosion in Phosphor Bronze tape used in underground power transmission cables
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, Maurizio Foresta, David Weston, Le M. Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of material and eventually the failure of cables. In the present work, the combined effect on the cable failure is studied in five stages: pit initiation, pitting corrosion control, pit-crack transfer, crack propagation control, and material failure. The cable time to failure is defined as the time needed for a corrosion pit on the tape surface to transfer into a crack resulting from a cyclic fatigue load condition. The pit-crack transfer is described statistically by a pitting corrosion to crack propagation transfer probability function. The result shows that a life prediction model can convey the long-term data of cables and can predict the years of failure. Subsequently, the life prediction model is extended and tested to include crack transfer probability function
D.p. Weston - One of the best experts on this subject based on the ideXlab platform.
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Corrosion fatigue of Phosphor Bronze reinforcing tapes on underground power transmission cables - Failure analysis
Engineering Failure Analysis, 2018Co-Authors: Maurizio Foresta, Sivashangari Gnanasambandam, D.p. Weston, Jingzhe Pan, Michelle Le BlancAbstract:Abstract This paper is an investigation on the failure mechanism involved in underground power transmission cables with their life limited by corrosion of Phosphor Bronze reinforcing tapes. In the present work, a detailed analysis of failed Bronze tapes in an ammonium free environment has been undertaken and corrosion fatigue failure mechanism has been identified. A detailed examination of the tape samples is carried out using 2D and 3D optical microscopy and SEM. It follows a mechanical approach that confirms corrosion fatigue as the failure mechanism. SEM images reveal that the pits present on the surface could be the starting point for the crack that eventually leads to failure. Stress calculation shows that the tape could fail only if corrosion pits are present on the tape surface. Presence of corrosion pits, multi cracks and striations on the fractured surface demonstrates corrosion fatigue cracking as the failure mechanism across the tape samples.
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Life Prediction of Phosphor Bronze Reinforcing Tape Used in Underground Power Cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Michelle Le Blanc, Jingzhe PanAbstract:Phosphor Bronze tape is a key protection component of underground power transmission cables. During the service life, it is affected by both corrosion and fatigue effects, leading to the failure of...
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measurement and modeling of pitting depth distribution for Phosphor Bronze tapes used in underground power transmission cables
Corrosion, 2017Co-Authors: Hang Zhou, Sivashangari Gnanasambandam, D.p. Weston, Maurizio Foresta, Fan Li, Michelle Le BlancAbstract:Phosphor Bronze tapes used in underground power transmission cables are affected by pitting corrosion that can lead to cable failures. In the present work, the probability distribution of corrosion...