FN Archimer Export Format PT J TI Mechanical behaviour of polyethylene terephthalate and polyethylene naphthalate fibres under cyclic loading BT AF LECHAT, CĂ©line BUNSELL, A DAVIES, Peter PIANT, A AS 1:1;2:1;3:2;4:1; FF 1:;2:;3:PDG-DOP-DCB-ERT-MS;4:; C1 Ecole Natl Super Mines, Ctr Mat, F-91003 Evry, France. IFREMER, Mat & Struct Grp, F-29280 Plouzane, France. C2 ECOLE MINES PARIS, FRANCE IFREMER, FRANCE SI BREST SE PDG-DOP-DCB-ERT-MS IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 0.999 TC 49 UR https://archimer.ifremer.fr/doc/2006/publication-1731.pdf LA English DT Article DE ;Fibres;Polyethylene terephthalate;Polyethylene naphthalate;Mechanical behaviour AB Polyethylene naphthalate (PEN) fibres possess a higher initial stiffness than that of polyethylene terephthalate (PET) fibres and this makes them an attractive competitor for use in mooring ropes and other applications for which a low compliance would be an advantage. The two types of fibres have been characterised and compared in tension, creep and fatigue and found to behave in very similar ways. Failure of both fibres results in similar fracture morphologies although under high cyclic loading a new failure process has been observed for the PEN fibres which combines step by step crack propagation and final failure normal to the fibre axis. In the light of this observation, similar fracture behaviour has also been identified in PET fibres and which, until now had been overlooked. The loading criteria for fatigue failure are similar for both fibres and it has been shown that, for a given maximum cyclic load, lifetime is raised if the minimum cyclic load is increased. (c) 2006 Springer Science + Business Media, Inc. PY 2006 PD MAR SO Journal of Materials Science SN 0022-2461 PU Kluwer VL 41 IS 6 UT 000236668700010 BP 1745 EP 1756 DI 10.1007/s10853-006-2372-x ID 1731 ER EF