Tension fatigue failure prediction for HMPE fibre ropes

Humeau, Corentin; Davies, Peter; Smeets, Paul; Engels, Tap Tom; Govaert, Leonard Eduard; Vlasblom, Martin; Jacquemin, Frédéric

doi:10.1016/j.polymertesting.2017.12.014

Cited by 16 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…21 Although the observed behavior may be "atypical" for composites, it is quite common in neat thermoplastic polymers, [23][24][25] as well as in short-fiber reinforced thermoplastic composites, 24,26 synthetic fibers and ropes. [27][28][29][30] Since the time-dependent behavior of the matrix has a significant influence on that of composites, we believe that a discussion on the long-term behavior of thermoplastics will be helpful in understanding the origin of the "atypical response" observed in some composites.…”

Section: Introductionmentioning

confidence: 99%

Identification of plasticity-controlled creep and fatigue failure mechanisms in transversely loaded unidirectional thermoplastic composites

Erartsın

Drongelen

Govaert

2020

Journal of Composite Materials

View full text Add to dashboard Cite

In continuous fiber-reinforced thermoplastics, the macroscopic failure mode in transverse long-term failure is dominated by a brittle crack-growth mechanism. Neat thermoplastic matrices, on the other hand, generally display also a plasticity-controlled mechanism in long-term loading at elevated stress levels and/or temperature. This failure mechanism requires a different approach to lifetime prediction than crack growth; hence, it is important to identify it in the long-term performance of composites. In this study, we demonstrate the presence of the plasticity-controlled failure mechanism in long-term failure of transversely loaded unidirectional (UD) thermoplastic composites made of glass/iPP, carbon/PEEK and carbon/PEKK. The main method used is to compare the lifetime in cyclic loading to that in static loading at the same level of maximum stress, where an increase in lifetime is characteristic for plasticity controlled failure, and, vice versa, a decrease is indicative for fatigue crack growth. In addition, the applicability of a lifetime prediction method common to plasticity-controlled failure of neat thermoplastics is evaluated for the composites investigated. The results of this study indicate that the plasticity-controlled failure was present in composites, although the extent to which the effects are present varied depending on the materials investigated. Glass/iPP showed the most explicit evidence of the plasticity-controlled failure over the entire load range experimentally covered. Its long-term failure was delayed with a decrease in the stress ratio and lifetime was predicted well using the principles of plasticity-controlled failure.

show abstract

Section: Introductionmentioning

confidence: 99%

Identification of plasticity-controlled creep and fatigue failure mechanisms in transversely loaded unidirectional thermoplastic composites

Erartsın

Drongelen

Govaert

2020

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

“…Most of the published work on bedding-in has been focused on polyester, polyamide and aramid fibers. Very few authors, with the exception of (Costa and Chimisso, 2011;Davies et al, 2011;Humeau et al, 2018;Lian et al, 2019Lian et al, , 2018bLian et al, , 2015 have considered HMPE. To the authors' knowledge no previous studies have presented results for ropes based on the Dyneema™ SK99 HMPE grade.…”

Section: Introductionmentioning

confidence: 99%

Influence of bedding-in on the tensile performance of HMPE fiber ropes

et al. 2020

View full text Add to dashboard Cite

Synthetic fiber ropes are widely used in the maritime industry, with applications from sailboat rigging to offshore platform mooring lines, thanks to their numerous qualities compared to steel cables: light weight, good specific mechanical properties and excellent marine resistance. A key feature of these ropes is their sensitivity to loading history, as this affects subsequent performance. In the present work the influence of the maximum bedding-in load level and the loading path were studied at the different rope component scales (filament, yarn and braided rope), in order to develop an optimal bedding-in procedure for braided ropes. The load levels were: 10%, 30% and 50% of the tensile break load of the sample. From the results obtained, the influence of braid construction and material have been studied, and an efficient bedding-in process has been defined. It was shown that the main parameter is the maximum load level, the loading path is not important. The load required to bed in HMPE ropes is closely related to changes in the braid angle under load. Highlights► Unique results of the influence of bedding in protocol on at different rope scales. ► Influence of bedding-in loading path and loading level on tensile behavior. ► Correlation between fibers reorientation and bedding-in protocols. ► Separation of contributions from material and construction.

show abstract

“…Post-impact mechanical characterization of HMPE yarns Moreover, similar investigations have shown the mechanical behaviour of the most commonly used synthetic fibres (polyester, polyamide, aramid), assessing creep at low temperatures [10], stiffness [11], and fatigue [12][13][14] of yarns. Within this context, Louzada et al [15] showed that the fatigue life of polyester yarns decreases after dynamic loadings, depending on the magnitude of the impact.…”

Section: No /mentioning

confidence: 99%

Post-impact mechanical characterization of HMPE yarns

Belloni¹,

Clain

Guilherme

2021

Acta Polytech

View full text Add to dashboard Cite

The present work evaluates the mechanical behaviour of High Modulus Polyethylene (HMPE) yarns after being impacted by sudden axial loads. The influence of loading conditions on the structural integrity of yarns is assessed by tensile, fatigue, and creep tests before and after the impact events. The impact loads were inferred by drop-weight adopting a 300mm height and weights corresponding to 4, 5, and 6% of Yarn Breaking Load (YBL). At 5% YBL, most specimens fail after the impact, and at 6% YBL, all specimens fail. The application of 4% YBL tests results in enhanced creep and fatigue resistances and a decrease in the tensile resistance. Finally, a Scanning Electron Microscopy (SEM) analysis showed that the yarn filaments tend to straighten after the impact, while a decrease in their diameter is noticed due to the longitudinal deformation.

show abstract

Tension fatigue failure prediction for HMPE fibre ropes

Cited by 16 publications

References 25 publications

Identification of plasticity-controlled creep and fatigue failure mechanisms in transversely loaded unidirectional thermoplastic composites

Identification of plasticity-controlled creep and fatigue failure mechanisms in transversely loaded unidirectional thermoplastic composites

Influence of bedding-in on the tensile performance of HMPE fiber ropes

Post-impact mechanical characterization of HMPE yarns

Contact Info

Product

Resources

About