FN Archimer Export Format
PT J
TI Assessing the performance durability of elastomeric moorings: Assembly investigations enhanced by sub-component tests
BT 
AF GORDELIER, T.
   PARISH, D.
   THIES, P. R.
   WELLER, S.
   DAVIES, Peter
   LE GAC, Pierre-Yves
   JOHANNING, L.
AS 1:1;2:1;3:1;4:1;5:2;6:2;7:1;
FF 1:;2:;3:;4:;5:PDG-REM-RDT-LCSM;6:PDG-REM-RDT-LCSM;7:;
C1 Univ Exeter, Renewable Energy Res Grp, Penryn Campus, Exeter, Devon, England.
   IFREMER, Marine Struct Lab, Ctr Brest, Plouzane, France.
C2 UNIV EXETER, UK
   IFREMER, FRANCE
SI BREST
SE PDG-REM-RDT-LCSM
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 2.73
TC 4
UR https://archimer.ifremer.fr/doc/00434/54605/55987.pdf
LA English
DT Article
DE ;Marine energy;Mooring;Elastomer;Durability;EPDM;Component testing
AB The growing marine renewable energy sector has led to a demand for increasingly compliant mooring systems. In response, several innovative mooring tethers have been proposed demonstrating potential customisation to the stiffness profile and reduced peak mooring loads. Many of these novel systems utilise materials in a unique application within the challenging marine environment and their long term durability remains to be proven. This paper presents a multifaceted investigation into the durability of a novel polyester mooring tether with an elastomeric core. Laboratory based functionality tests are repeated on tether assemblies following a 6 month sea deployment. Results show a 45% average increase in dynamic axial stiffness. This is supported by high tension laboratory based fatigue endurance tests showing a peak increase in dynamic axial stiffness of 42%. Sub-component material tests on the core elastomer support the assembly tests, separately demonstrating that certain aspects of tether operation lead to increased material sample stiffness. The average increase in material radial compressive stiffness is 22% and 15% as a result of marine ageing and repeated mechanical compression respectively; these are the first results of this type to be published. The performance durability characterisation of the tether establishes the mooring design envelope for long-term deployment. This characterisation is crucial to ensure reliable and effective integration of novel mooring systems into offshore engineering projects. 
PY 2018
PD MAY
SO Ocean Engineering
SN 0029-8018
PU Pergamon-elsevier Science Ltd
VL 155
UT 000431583500031
BP 411
EP 424
DI 10.1016/j.oceaneng.2018.02.014
ID 54605
ER

EF