scholarly journals Bend Over Sheave Durability of Fibre Ropes for Deep Sea Handling Operations

2013 ◽  
Author(s):  
P. Davies ◽  
N. Lacotte ◽  
G. Kibsgaard ◽  
R. Craig ◽  
D. Cannell ◽  
...  
Keyword(s):  
Experimental Data ◽  
Deep Sea ◽  
Dynamic Friction ◽  
Special Device ◽  
High Modulus ◽  
Test Program ◽  
Polyethylene Fiber ◽  
Friction Measurements ◽  
Modulus Polyethylene ◽  
Cycles To Failure

This paper describes work performed within a Joint Industry Project aiming to evaluate the lifetime of deep sea handling ropes. Various HMPE (High Modulus Polyethylene) fiber ropes, with and without coatings, have been studied under both tensile and cyclic bend over sheave (CBOS) loading. A large test program has enabled both tension-cycle to failure relationships and empirical expressions for residual strength after cycling to be determined. A special device was then developed to apply a known couple to the sheave, allowing both dynamic friction measurements to be made and the influence of applied couple on cycles to failure to be measured. These experimental data were used in the development of a numerical model which can be used to study the influence of rope and sheave parameters.

Surface morphology and nanostructure of high modulus polyethylene fiber

1994 ◽  
Vol 32 (2) ◽  
pp. 235-240 ◽  
Author(s):  
A. Wawkuschewski ◽  
H. J. Cantow ◽  
S. N. Magonov
Keyword(s):  
Surface Morphology ◽  
High Modulus ◽  
Polyethylene Fiber ◽  
Modulus Polyethylene

High-modulus polyethylene fiber structure as shown by x-ray diffraction

1992 ◽  
Vol 25 (18) ◽  
pp. 4575-4582 ◽  
Author(s):  
David T. Grubb ◽  
Keshav Prasad
Keyword(s):  
Fiber Structure ◽  
High Modulus ◽  
X Ray Diffraction ◽  
X Ray ◽  
Polyethylene Fiber ◽  
Modulus Polyethylene

scholarly journals Yarn on yarn abrasion performance of high modulus polyethylene fiber improved by graphene/polyurethane composites coating

2021 ◽  
Vol 16 ◽  
pp. 155892502098356
Author(s):  
Fanggang Ning ◽  
Guifang He ◽  
Chunfu Sheng ◽  
Hongwei He ◽  
Jian Wang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
High Frequency ◽  
High Performance ◽  
High Modulus ◽  
Bending Fatigue ◽  
Temperature Observation ◽  
Polyethylene Fiber ◽  
High Performance Fiber ◽  
Polyurethane Composites ◽  
Modulus Polyethylene

As a high-performance fiber, high modulus polyethylene fiber (HMPE) has been widely used in the rope industry. However, due to its low melting point and poor thermal conductivity, it tends to break under the conditions of repeated yarn on yarn abrasion during tension-tension fatigue or tension-bending fatigue. This paper puts forward a method to improve the yarn on yarn abrasion performance of HMPE using a functional graphene/polyurethane composites coating (FG/PU) and discussed the influence of yarn tension, abrasion frequency on the yarn on yarn performance. Based on the yarn morphology and abrasion temperature observation, the failure mechanism was discussed. The experimental results show that the FG/PU coating obtained can improve the yarn on yarn abrasion performance obviously, especially in the case of high-frequency and large tension condition.

scholarly journals Modification of High-Strength and High-Modulus Polyethylene Fiber Surfaces for the Purpose of Dyeing

2001 ◽  
Vol 33 (7) ◽  
pp. 509-513 ◽  
Author(s):  
Hitoshi Fujimatsu ◽  
Mitsuhiro Imaizumi ◽  
Nobukazu Shibutani ◽  
Hisanao Usami ◽  
Takashi Iijima
Keyword(s):  
High Strength ◽  
High Modulus ◽  
Polyethylene Fiber ◽  
Modulus Polyethylene
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