Long-term inter-link wear of model mooring chains

Title: Long-term inter-link wear of model mooring chains
Creator: Lotfollahi Yaghin, Amin; Melchers, Robert E.
Relation: ARC
Relation: Marine Structures Vol. 44, Issue December 2015, p. 61-84
Publisher Link: http://dx.doi.org/10.1016/j.marstruc.2015.08.001
Publisher: Elsevier
Resource Type: journal article
Date: 2015
Description: Chains usually form the upper part of moorings systems used for maritime structures such as floating production storage and offloading (FPSO) vessels, increasingly employed in the offshore oil and gas industry particularly in very deep waters. Current design rules do not differentiate between corrosion and inter-link wear. Laboratory experiments are described to determine the rate of wear of model (i.e. small-scale) mooring chains for up to 200,000 wear cycles. Various axial loadings and specific angular displacement were used with testing under either dry or wet conditions and for un-corroded and corroded chain. The results show that tensile force has a significant but non-linear effect on the inter-link wear. The amount of wear is similar for un-corroded and for corroded chains and is lower in wet conditions.
Subject: mooring systems; steel; chains; wear; marine corrosion
Identifier: http://hdl.handle.net/1959.13/1315012
Identifier: uon:22876
Identifier: ISSN:0951-8339
Language: eng
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