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| Davies, Peter; Reaud, Yvan; Dussud, Loic; Woerther, Patrice. |
| This paper describes the mechanical behaviour of ropes used for deep sea oceanographic operations. First the requirements of deep sea handling ropes are presented. Two high performance fibres are commonly used, aramid co-polymer and high modulus polyethylene (HMPE), and these are then compared. Results from tests on single fibres and 50 ton break load braided ropes are presented, which show that the initial stiffness of a new HMPE rope increases with load level in a bedding-in process resulting from both molecular alignment and construction reorientation. The aramid rope is less sensitive to this effect and shows a high stiffness from first loading. Measurements made at sea on oceanographic ropes of both materials using an elastic recoil method are... |
| Tipo: Text |
Palavras-chave: Fibre rope; Deep sea coring; Stiffness; Aramid; HMPE. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00054/16573/14068.pdf |
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