"Structural analysis of pipelines for deep water applications" - February 28, 2024, Wednesday, 3:00 pm, Pavilhão de Mecânica II, amphitheatre AM

Date: February 28, 2024, Wednesday
Time: 3:00 pm
Place: Pavilhão de Mecânica II, amphitheatre AM

• Speaker: Bai-Qiao Chen (Scientific Area of Naval Architecture and Marine Engineering of DEM/IST, CENTEC - Centre for Marine Technology and Ocean Engineering)

• Title: "Structural analysis of pipelines for deep water applications"
_{(Seminar delivered in English Language)}

• Abstract:

In the offshore oil and gas industries, a significant portion of equipment and structures are approaching the end of their operational life cycle, increasing the risk of unexpected failures. Despite the detection of corrosion during inspections, many pipelines remain in service for economic reasons, highlighting the importance of accurate strength assessments. This research focuses on enhancing the understanding and prediction of subsea pipeline strength, encompassing both single-wall steel pipes and sandwich wall pipes. Collapse strength assessments are conducted for pipelines with varying diameter-to-thickness ratios (D/t), considering the impact of corrosion defects. Utilizing 3D Non Linear Finite Element Analysis, models incorporating combined corrosion effects are developed and analysed. The study investigates the influence of corrosion defects on pipeline collapse modes and strength, while also addressing the effects of ovality and eccentricity on strength evaluations.

• Short Biographic Note:

Dr. Bai-Qiao Chen is currently an Assistant Professor in the Scientific Area of Naval Architecture and Marine Engineering of DEM at Instituto Superior Tecnico (IST), affiliated with CENTEC - Centre for Marine Technology and Ocean Engineering. His research interests revolve primarily around the structural performance of ships and offshore structures, with a specific focus on areas such as ultimate strength, photogrammetry, corrosion, collision and grounding, renewable energies and digital twin applications. Dr. Chen is an active member of the International Ship and Offshore Structures Congress (ISSC), contributing his expertise to the advancement of the field. In addition to his academic role, Dr. Chen plays an active role in editorial activities. He serves as a member of the Associate Board for the Journal of Marine Science and Application, and has served as a guest editor for various journals, including the Journal of Marine Science and Engineering, Applied Sciences and Frontiers in Energy Research. Furthermore, he contributes to the academic community by chairing conference sessions at prestigious international conferences such as MARTECH, MARSTRUCT, RENEW, among others.

This is another Seminar of the “Seminars@DEM” cycle.
Next Seminar, March 13, 2024, Wednesday, 3:00 pm.