Surface crack growth in offshore metallic pipes under cyclic loads
A literature review
Zongchen Li (TU Delft - Support Marine and Transport Techology)
Xiaoli Jiang (TU Delft - Transport Engineering and Logistics)
JJ Hopman (TU Delft - Ship Design, Production and Operations, TU Delft - Marine and Transport Technology)
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Abstract
The surface crack, also known as the partly through-thickness crack, is a serious threat to the structural integrity of offshore metallic pipes. In this paper, we review the research progress in regard to surface crack growth in metallic pipes subjected to cyclic loads from the fracture mechanics perspective. The purpose is to provide state-of-the-art investigations, as well as indicate the remaining challenges. First, the available studies on surface cracked metallic pipes are overviewed from experimental, numerical, and analytical perspectives, respectively. Then, we analyse state-of-the-art research and discuss the insufficiencies of the available literature from different perspectives, such as surface cracks and pipe configurations, environmental influential parameters, the girth welding effect, and numerical and analytical evaluation methods. Building on these surveys and discussions, we identify various remaining challenges and possible further research topics that are anticipated to be of significant value both for academics and practitioners.
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