Effects of structure on the tensile, creep and fatigue properties of polyester fibres

Oudet, Ch.; Bunsell, Anthony R.

doi:10.1007/bf01132020

Cited by 37 publications

(20 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An interesting result was observed when a second set of experiments was performed [2]. In these experiments the maximum load was kept constant at 70% MBL as the minimum load was increased.…”

Section: Fatigue Of Polyester Fibermentioning

confidence: 90%

See 1 more Smart Citation

Test Results on The Effect of Cyclic Wear of Polyester Sub Ropes

Ayers

Aksu

2011

All Days

View full text Add to dashboard Cite

In this paper, research efforts initiated in 2007 to better understand failure mechanisms of polyester rope are reviewed. A strain-based method is described for predicting the remaining life of polyester mooring lines. The fatigue mechanisms of metals vs. polyester are contrasted, leading to a justification for using strand-on-strand, "20-hurricane" subrope testing of polyester mooring lines rather than traditional (as conducted for steel) fatigue testing of the full-size rope assembly.This paper provides strand-on-strand, "20-hurricane" test results from over 40 individual rope tests, with the key comparative variable in the form of % reduction in breaking strength (after 20,000 cycles of 30% average break load ±15%). Data are presented for five different commercially available polyester mooring rope designs.Unexpected results due to subrope unloading and reloading during a test sequence are described and explained. This behavior was observed in certain cyclic wear tests, and was caused by fiber-yarn bedding in, breaking out, and then rebedding.Finally, a semi-empirical mathematical model to predict rope remaining life is described that employs the results of the "20-hurricane" test program.

show abstract

Section: Fatigue Of Polyester Fibermentioning

confidence: 90%

“…The crystallinity rate [2] of the fiber used, jacketing style, and braid type, as well as the structure of the rope, significantly affect fatigue life of the rope. The crystallinity rate [2] of the fiber used, jacketing style, and braid type, as well as the structure of the rope, significantly affect fatigue life of the rope.…”

Section: Fatigue Of Polyester Fibermentioning

confidence: 99%

Test Results on The Effect of Cyclic Wear of Polyester Sub Ropes

Ayers

Aksu

2011

All Days

View full text Add to dashboard Cite

show abstract

“…Crack defl ection is assisted by the gradient in residual stress (compression to tension from surface to interior) and the drawing out of chains in the semi-crystalline regions between the crystalline domains. 7,8 This degree of amorphization increases with increasing fatigue damage. Coalescence of these amorphous intercrystalline regions into bands results in crack propagation along the fi ber axis.…”

Section: Polymeric Fibersmentioning

confidence: 96%

The cyclic fatigue of high-performance fibers

Kerr

Chawla

2005

JOM

View full text Add to dashboard Cite

High-performance fi bers are virtually ubiquitous in our everyday lives. In a variety of structural applications, fi bers and fi ber-reinforced composites are subjected to cyclic mechanical loading. This paper reviews the fatigue behavior of some common high-performance fi bers such as polymer, metal, and ceramic fi bers. Fatigue mechanisms unique to each type of fi ber are identifi ed and a description of fatigue damage and fracture is provided.

show abstract

“…Other filament damage was not visible. Only fatigued cords that had been loaded to breakage before SEM preparation showed some blunt filament fractures with a long narrow lip, typical of tension-tension fatigue [ 1,6,8]. RGURE 11. Severe fretting damage at the cross-plane of the plies (+20/+5).…”

Section: Sem Analysesmentioning

confidence: 97%

An Investigation into the Fatigue Mechanism of PET Tire Cord in the Goodrich Block Fatigue Test

Winkler

1991

Textile Research Journal

View full text Add to dashboard Cite

The Goodrich block fatigue test is commonly used to determine the (compression) fatigue behavior of tire cord in rubber. An investigation has been conducted into the origin of the loss of cord strength under different load conditions and at different running times. To this end the retained strengths and the force-strain curves of the fatigued cords were measured. The location of the cord fractures and a SEM analysis provided valuable extra information about the fatigue mechanism. The strength loss of the cords appeared to be mainly caused by the strength loss of the filaments. Changes in cord geometry and filament interaction occurring during the fatigue process play no or a very small role in the loss of cord strength. Depending on the load, the filaments show bending, tension-tension, and fretting fatigue damage. The severest fatigue load seems to be high tension combined with a certain amount of compression. Principle of the GBF TestThe Goodrich block fatigue (GBF) test is used by both tire and tire cord manufacturers to determine the (compression) fatigue behavior of tire cord in rubber. The cords are embedded in rubber blocks (Figure 1 ), which are clamped at the circumference of two synchronously rotating discs (Figure 2). If one disc is canted relative to the other, the rubber-cord specimens are loaded cyclically in compression and extension. Adjusting the angle and distance between the two discs provides the desired amount of compression and extension. After a specified number of cycles, the rubber is removed from the cords, which are subsequently tested for retained strength. , 1 FIGURE 1. Schematic drawing of the GBF specimen.FIGURE 2. Principk of the GBF tester (the deformation of the specimen is exageertted)Although the GBF test is described in ASTM D885-62T, it is by no means fully standardized. The construction and dimensions of the specimen and the test conditions vary with each user, those used within Akzo are described in detail in reference 13. OBJECTIVEIn general, the GBF test provides an impression of the (compression) fatigue behavior of the tire cord and permits prediction of the fatigue behavior of the cord in the tire. To improve the fatigue resistance of the cords and predict their fatigue behavior in the tire with sufficient accuracy, it is necessary to understand the

show abstract

Effects of structure on the tensile, creep and fatigue properties of polyester fibres

Cited by 37 publications

References 12 publications

Test Results on The Effect of Cyclic Wear of Polyester Sub Ropes

Test Results on The Effect of Cyclic Wear of Polyester Sub Ropes

The cyclic fatigue of high-performance fibers

An Investigation into the Fatigue Mechanism of PET Tire Cord in the Goodrich Block Fatigue Test

Contact Info

Product

Resources

About