Fretting behaviour of unidirectional glass fibre–epoxy composites, influence of electric charge effects

Turki, C.; Kechaou, B.; Tréheux, D.; Fakhfakh, Z.; Salvia, Michelle

doi:10.1016/j.wear.2004.02.002

Cited by 7 publications

(9 citation statements)

References 34 publications

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“…These methods have been described previously in several papers [1,[17][18][19][20][21]. Here, some essential elements are pointed out.…”

Section: Dielectric Measurementsmentioning

confidence: 99%

“…In other words, the fibres can induce a trapping or a diffusion of charges along the fibre/matrix interfaces. A previous study on the fretting behaviour of the same composites [17] has shown that a strong capacity to trap charges along the fibre/matrix interface, inducing a significant storage of polarization energy, involves an increase in the friction coefficient and the wear of the composite. Within this scope, the aim of this paper is to confirm the role of the electric charges on the friction behaviour of GFRE composites and, more precisely, to show the role of the treatment (sizing) of the fibres.…”

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Dielectric and friction behaviour of unidirectional glass fibre reinforced epoxy (GFRE)

Kchaou

Turki

Salvia

et al. 2008

Wear

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“…These methods have been described previously in several papers [1,[17][18][19][20][21]. Here, some essential elements are pointed out.…”

Section: Dielectric Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Dielectric and friction behaviour of unidirectional glass fibre reinforced epoxy (GFRE)

Kchaou

Turki

Salvia

et al. 2008

Wear

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“…3 The massive detrapping of the trapped charges leads to a sudden depolarization of the dielectric medium: all the stored polarization energy is suddenly released inducing wear mechanisms. 4 Previous studies on the friction behavior of GFRE industrial composites 5,6 have shown that a strong capacity to trap charges along the fiber/matrix interface, inducing significant storage of polarization energy, involves an increase in the friction coefficient of the composite and in wear.…”

Section: Introductionmentioning

confidence: 99%

“…Such an approach has been widely validated not only on ceramic materials, 3,4 but also on polymers 10,11 and composites. 2,5,6 …”

Section: Introductionmentioning

confidence: 99%

Role of fiber/matrix interphases on dielectric, friction, and mechanical properties of glass fiber-reinforced epoxy composites

Kechaou

Salvia

Benzarti

et al. 2011

Journal of Composite Materials

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This study compares the mechanical, tribological, and dielectric properties of glass fiber-reinforced epoxy (GFRE), presenting various fiber/matrix adhesions. Three GFRE composites were studied. The only difference between them is in the initial preparation of fibers which is intentionally simplified compared to the complex sizings used in industry. Thus, fibers treated with aminosilane or silicone coupling agents were compared with fibers simply washed with deionized water. The dielectric measurements show the leading role of interfacial bonding in the trapping or diffusion of electric charges. To obtain high mechanical properties, a fiber treatment that contributes to the diffusion of electric charges along the fiber/matrix interface is preferred. In addition, after friction, a modification of the dielectric properties in all materials is observed, and the trapping or the diffusion of the charges along the interfaces can make it possible to lower the friction coefficient, or the wear

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“…Other investigations are concentrated on addition of various kinds of particles, [9][10][11][12][13][14][15][16][17] especially nanoparticles, [18][19][20] and most investigation results found that inorganic particles increased the wear resistance of the composites by increase in the mechanical properties and hardness, or by providing lubricating effects and decreasing the transfer of epoxy to counterpart. Other investigations are carried out to study the friction condition [21][22][23][24][25] like oil, coating, electric charge, wear debris, and grooved surfaces on the tribology characteristic and mechanism. While although the thermal effects in friction have serious influence on the tribology behavior of epoxy composites for their low thermometric conductivity, there is little investigation on the effects of heat-absorbing particles like Al(OH) 3 .…”

Section: Introductionmentioning

confidence: 99%

Effects of micro-Al(OH)3 and nano-SiO2 on wear behavior of GF/epoxy composites in high-friction velocity

Peng

Zhan

Gao

et al. 2011

Journal of Reinforced Plastics and Composites

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Effects of micro-Al(OH) 3 powders on wear behavior of GF/EP composites are studied in friction velocity from 15 to 45 m/s. The results show that friction coefficients change insignificantly with increase of loads and addition of powders, but change significantly with the variation of friction velocity. Abrasion rates increase dramatically with the increase of friction velocity and load. The addition of nano-SiO2 increases the abrasion rate under the same load, the addition of Al(OH)3 powders decreases the abrasion rate. The wear mechanisms are adhesive and fatigue, which do not change with addition of either micro-Al(OH)3 powders or nano-SiO2. In the previous study, abrasive friction is the major wear mechanism in lower velocity friction condition. Different from low-velocity friction, the friction between the GF/EP composites and the transfer film is predominating in high-friction velocity, which results in dramatical increase in wear rate and decrease in friction coefficient in higher friction velocity. The effects of Al(OH) 3 powders on wear rate are attributed to the heat absorption when Al(OH) 3 powder decomposes, which is testified by the endothermic effect between 200°C and 300°C in DSC curves.

show abstract

Fretting behaviour of unidirectional glass fibre–epoxy composites, influence of electric charge effects

Cited by 7 publications

References 34 publications

Dielectric and friction behaviour of unidirectional glass fibre reinforced epoxy (GFRE)

Dielectric and friction behaviour of unidirectional glass fibre reinforced epoxy (GFRE)

Role of fiber/matrix interphases on dielectric, friction, and mechanical properties of glass fiber-reinforced epoxy composites

Effects of micro-Al(OH)3 and nano-SiO2 on wear behavior of GF/epoxy composites in high-friction velocity

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