Tensile fatigue behaviour of PBO fibres

Type Article
Date 2010-12
Language English
Author(s) Davies PeterORCID1, Bunsell A. R.2, Chailleux Emmanuel3
Affiliation(s) 1 : IFREMER, Ctr Brest, Mat & Struct Lab, F-29280 Plouzane, France.
2 : Ecole Mines Paris, Ctr Mat, F-91003 Evry, France.
3 : Lab Cent Ponts & Chaussees, F-44341 Bouguenais, France.
Meeting 14th Israel Materials Engineering Conference (IMEC-14), Tel Aviv, ISRAEL, DEC 13-14, 2009
Source Journal Of Materials Science (0022-2461) (Springer), 2010-12 , Vol. 45 , N. 23 , P. 6395-6400
DOI 10.1007/s10853-010-4721-z
WOS© Times Cited 14
Abstract Poly(p-phenylene benzobisoxazole) (PBO) fibres are finding increasing applications on account of their exceptional stiffness and strength. This article presents results from tests on single PBO filaments, to characterize their intrinsic behaviour under quasi-static and cyclic tensile loading. Scanning electron microscopy is used to show the fibrillation mechanism leading to failure. Results are compared to data for polyester, aramid and high modulus polyethylene fibres. PBO fibres show shorter fatigue lifetimes than the other fibres when maximum stress is expressed as a percentage of quasi-static break load, but the absolute stress values applied are much higher for an equivalent lifetime.
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