Mechanical and tribological study of short glass fiber-reinforced PA 66

Autay, Riadh; Missaoui, Sami; Mars, Jamel; Dammak, Fakhreddine

doi:10.1177/0967391119853956

Cited by 17 publications

(14 citation statements)

References 27 publications

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“…Among a variety of fillers, glass fibers are extensively preferred owing to their ability of increasing the stiffness and heat resistance of the composite as well as their relatively low processing costs [10]. Addition of glass fibers into PA 66 matrix up to a certain ratio leads to a large amount of improvement in the mechanical properties [11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Tensile and flexural properties of MWCNT-COOH and hBN integrated polyamide 66/short glass fiber composites

Demircan¹,

Ansaroudi²,

Uzunoğlu³

2021

Res. Eng. Struct. Mater.

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In this study, the effect of hexagonal boron nitride (hBN) and modified (carboxylic acid functionalized) multi-walled carbon nanotubes (MWCNTs-COOH) on tensile and flexural behaviour of 30% short glass fiber reinforced Polyamide 66 (PA 66/30SGF) is investigated. Initially, MWCNTs-COOH, hBN and MWCNTs-COOH/hBN are mechanically mixed with PA 66/30SGF granules in ethanol and stirred via a magnetic stirrer for one hour. After ethanol evaporates, MWCNTs-COOH, hBN and MWCNTs-COOH/hBN integrated granules are conditioned in an oven and the obtained granules are transferred to the plastic injection moulding machine for the fabrication process of specimens. Thus five types of specimens are produced; and their mechanical behaviors are examined by Instron 5982 test machine. The test results show that elastic modulus and flexural properties of PA 66/30SGF are improved with the addition of MWCNTs-COOH, hBN and MWCNTs-COOH+hBN.

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Section: Introductionmentioning

confidence: 99%

Tensile and flexural properties of MWCNT-COOH and hBN integrated polyamide 66/short glass fiber composites

Demircan¹,

Ansaroudi²,

Uzunoğlu³

2021

Res. Eng. Struct. Mater.

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“…In the case of GFRPA66 with 35 wt.% reinforcement, the COF decreases under all load and sliding velocity conditions attributed to the transition in material’s behavior from ductile to fragile [ 29 , 46 , 47 ]. As the glass fiber weight increases in the matrix, the glass fiber carries all of the friction load and the transfer film available on specimen surface maintains relatively lesser temperature between pin and steel disc surface.…”

Section: Resultsmentioning

confidence: 99%

“…At low load and low sliding speeds, the coefficient of friction and wear becomes high, but as the load increases within the elastic limit, the friction coefficient decreases. With a further increase in the load beyond the elastic limit, the friction coefficient may increase due to the increase in the plastic deformation [ 29 ]. However, the tribological properties are found to be lower while using a glass fiber reinforced polymer composite with 30 weight % glass fiber and 6 wt.% nylon (30 wt.% GFR and 6 wt.% nylon) [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Response Surface Methodology Based Optimization of Test Parameter in Glass Fiber Reinforced Polyamide 66 for Dry Sliding, Tribological Performance

Jagadeesan¹,

Selvaraj

Santhosh

et al. 2022

Materials

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The tribological performance of a glass fiber reinforced polyamide66 (GFRPA66) composite with varying fiber weight percentage (wt.%) [30 wt.% and 35 wt.%] is investigated in this study using a pin-on-disc tribometer. GFRPA66 composite specimens in the form of pins with varying percentages of fiber viz., 30 wt.% and 35 wt.% are fabricated by an injection molding process. Tribological performances, such as coefficient of friction (COF) and the specific wear rate (SWR), are investigated. The factors affecting the wear of GFRPA66 composites [with 30 wt.% and 35 wt.% reinforcements] are identified based on the process parameters such as load, sliding velocity, and sliding distance. Design Expert 13.0 software is used for the experimental data analysis, based on the design of experiments planned in accordance with the central composite design (CCD) of the response surface methodology (RSM) technique. The significance of the obtained results are analyzed using analysis of variance (ANOVA) techniques. To attain minimum SWR and COF, the wear performance is optimized in dry sliding conditions. The analysis of experimental data revealed that SWR and COF increased with increasing load, sliding velocity, and sliding distance for GFRPA66 [30 wt.%], but decreased with increasing polyamide weight percentage. The SWR for a maximum load of 80 N, and for a sliding velocity of 0.22 m/s, and a sliding distance of 3500 m for GFRPA66 composite specimens with 30 wt.% reinforcements are found to be 0.0121 m3/Nm, while the SWR for the same set of parameters for GFRPA66 composite specimens with 35 wt.% reinforcements are found to be 0.0102 m3/Nm. The COF for the GFRPA66 composite specimens with 30 wt.% reinforcements for the above set of parameters is found to be 0.37, while the GFRPA66 composite specimens with 35 wt.% reinforcements showed significant improvement in wear performance with a reduction in COF to 0.25. Finally, using a scanning electron microscope (SEM), the worn surfaces of the GFRPA66 are examined and interpreted.

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“…It was observed that wear resistance of composites increased with GF content. As the mechanical and tribological behaviors of GFRP composites are improved, their usage areas are increasing day by day and they are subjected to different processing methods [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Investigation of mechanical characteristics of GFRP composites produced from chopped glass fiber and application of taguchi methods to turning operations

Çelik

Türkan

2020

SN Appl. Sci.

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Glass fiber-reinforced plastic (GFRP) composites take place in engineering materials owing to their low-weight and high-mechanical properties. In some cases, they need to be shaped by machining before using in industrial applications. However, when these composites are machined, many problems such as bad surface quality, rapid tool wear are encountered. Therefore, optimization of cutting parameters is essential to eliminate or minimize these problems. In this study, GFRP composites were produced by combining polyester matrix material with glass fibers (GF) having 6 mm, 6-12 mm, 12 mm fiber length, and 20%, 25%, 30% fiber ratio by weight. The tensile strengths of these composites were investigated. Turning tests were also performed with cutting speeds of 40, 80, and 120 m/min, feed rates of 0.1, 0.2 and 0.3 mm/rev, and depth of cut of 1, 2, and 3 mm, according to Taguchi L 27 standard orthogonal array method. The effect of fiber length and ratio, and cutting parameters on cutting forces and surface roughness were analyzed. As a result of the experiments, it was observed that the reinforced polymer matrix with GF provide to increase the tensile strength. The highest tensile strength was obtained as 55.95 MPa from the composite having a fiber length of 12 mm and a fiber ratio of 25%. Besides, the feed rate was determined as the most effective parameter among the all parameters on both cutting force and surface roughness. Therefore, the feed rate should be chosen low for lower cutting force and surface roughness values.

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Mechanical and tribological study of short glass fiber-reinforced PA 66

Cited by 17 publications

References 27 publications

Tensile and flexural properties of MWCNT-COOH and hBN integrated polyamide 66/short glass fiber composites

Tensile and flexural properties of MWCNT-COOH and hBN integrated polyamide 66/short glass fiber composites

Response Surface Methodology Based Optimization of Test Parameter in Glass Fiber Reinforced Polyamide 66 for Dry Sliding, Tribological Performance

Investigation of mechanical characteristics of GFRP composites produced from chopped glass fiber and application of taguchi methods to turning operations

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