The National Decommissioning Centre's Abraham Mensah gives an update on his PhD research which is funded by the Ghana National Petroleum Corporation.

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What is the challenge? To provide a comprehensive understanding of the performance of corroded pipelines with interacting corrosion cluster defects and develop computationally efficient modelling schemes to guide risk and maintenance planning.

What has your research found out? It has developed computationally efficient, probabilistic-based modelling frameworks to evaluate the performance of corroded pipelines with interacting corrosion cluster defects.

Why is this important? The probabilistic-based approaches employ surrogate models with implicit limit state functions that yields higher reliability estimates within a much lesser computational cost than the existing methods with explicit limit state functions.

What impact will the research have? The developed frameworks produce better reliability results than existing methods. Hence, this leads to relatively lesser risk and maintenance-based interventions, resulting in relatively lesser operating expenditure in a timely manner. The developed frameworks are applicable to complex structures where explicit limit state function may not be available.

Read Abraham’s latest publication ‘Probabilistic finite element-based reliability of corroded pipelines with interacting corrosion cluster defects’ here – Probabilistic finite element-based reliability of corroded pipelines with interacting corrosion cluster defects – ScienceDirect

Abraham would like to thank the GNPC Foundation for funding his PhD studies. He also acknowledges the research support from the Net Zero Technology Centre and the University of Aberdeen through their partnership with the NDC as well as Srinivas Sriramula PhD CEng MIMechE.

Notes for Editors