Investigation of the Effects of Use of GNP and GNP Reinforced Nano-Fibers with Epoxy Adhesive on Tension Tests

Year 2021, , 175 - 181, 30.12.2021

Edip Çetkin

https://doi.org/10.36222/ejt.957654

Abstract

In this study, the effects of different ratios of graphene nanoparticles (GNP) and Nanofibers on bonding joints were investigated. Therefore, AA5754 alloy samples were bonded by adhesive DP460 and using different ratios of graphene nanoparticle (GNP) and Nanofibers. 0.1%, 0.2% and 0.3% were added to GNP, DP460 adhesive. Samples of 75x30x3 mm and patches of 40x30 mm were used, which cut from AA5754 alloy plate. Tensile tests of samples were conducted to see the effects of each parameter on the bonding joints after the bonding process. After tension tests, macrostructure and SEM analyses of the rupture surfaces were performed. In conclusion, the best tensile damage load has been obtained in bonding joints where Nanofiber has been used together with 0.2% GNP. In addition, it has been observed that CHZ + Fiber + CHZ and AHZ + CHZ structures seen in macrostructure images have positive effects on tensile test results.

Keywords

Adhesive, GNP, Hybrid joining, Nano-Fiber

References

• [1] Adin H., The effect of angle on the strain of scarf lap joints subjected to tensile loads. Appl Math Model;36:2858-67, 2012.
• [2] Ascione F., The influence of adhesion defects on the collapse of FRP adhesive joints. Compos Part B Eng; 87:291-8, 2016.
• [3] Avia A., Yoshida MI, Carvalho MG, Dias EC, Junior JA. An investigation on post fire behaviour of hybrid nanocomposites under bending loads. Compos Part B Eng 2010;41:380-7.
• [4] Sayman O. Elasto-plastic stress analysis in an adhesively bonded single-lap joint. Compos Part B Eng 2012;43:204-9.
• [5] Marannano G, Zuccarello B. Numerical experimental analysis of hybrid double lap aluminium-CFRP Joints. Compos Part B Eng 2015;71:28-39.
• [6] Solmaz MY, Topkaya T. Progressive failure analysis in adhesively, riveted, and hybrid bonded double-lap joints. J Adhesion 2013;89:822-6.
• [7] Akpinar S., The strength of the adhesively bonded step-lap joints for different step numbers. Compos Part B Eng; 67:170-8, 2014.
• [8] Siddiqui NA., Khan SU., Ma PC., Li CY., Kim JKK., Manufacturing and characterization of carbon fibre/epoxy composite prepregs containing carbon nanotubes. Compos Part A; 42:1412-20, 2011.
• [9] Di Franco G, Zuccarello B., Analysis and optimization of hybrid double lap aluminium-GFRP joints. Compos Struct; 116:682-93, 2014.
• [10] [Gültekin K., Akpinar S., Gürses A., Eroglu Z., Cam S. Akbulut H., Keskin Z., Ozel A., The effects of graphene nanostructure reinforcement on the adhesive method and the graphene reinforcement ratio on the failure load in adhesively bonded joints. Composites Part B 98 (2016) 362-369. http://dx.doi.org/10.1016/j.compositesb.2016.05.039.
• [11] Akpınar İA., Gültekin K., Akpinar S., Akbulut H., Ozel A. Experimental analysis on the single-lap joints bonded by a nanocomposite adhesives which obtained by adding nanostructures. Composites Part B 110 (2017) 420-428. http://dx.doi.org/10.1016/j.compositesb.2016.11.046.
• [12] Jia Z., Feng X., Zou Y. Graphene Reinforced Epoxy Adhesive for Fracture Resistance Composites Part B 155 (2018) 457–462. https://doi.org/10.1016/j.compositesb.2018.09.093.
• [13] Moriche R., Prolongo SG., Sánchez M., Jiménez-Suárez A.,Chamizo F.J, Ureña A. Thermal conductivity and lap shear strength of GNP/epoxy nanocomposites adhesives. International Journal of Adhesion and Adhesives 68(2016)407–410. http://dx.doi.org/10.1016/j.ijadhadh.2015.12.012.
• [14] Khoramishad H., Ashofteh RS., Pourang H., Berto F. Experimental investigation of the influence of temperature on the reinforcing effect of graphene oxide nano-platelet on nanocomposite adhesively bonded joints. Theoretical and Applied Fracture Mechanics 94, 95–100. https://doi.org/10.1016/j.tafmec.2018.01.010.
• [15] Sadigh MAS. and Marami G. Investigating the effects of reduced graphene oxide additive on the tensile strength of adhesively bonded joints at different extension rates. Materials and Design 92, 36–43. http://dx.doi.org/10.1016/j.matdes.2015.12.006.
• [16] Çetkin E. and Temiz S. Repair of aluminium plates which has different sizes notch with aluminium patch. DUFED 5 (2), 56-69.
• [17] Prabaharan M., Jayakumar R., Nair SV. Electro spun Nano fibrous scaffolds-current status and prospects in drug delivery, Advances in Polymer Sciences, 246, 241-262.
• [18] Jahangiri S, Ozden-Yenigun E. The stability and dispersion of carbon nanotube-polymer solutions: A molecular dynamics study. J Ind Text., 47(7):1568-83.
• [19] Weng BC., Xu F.H., Garza G., Alcoutlabi M., Salinas A., Lozano K. The Production of Carbon Nanotube Reinforced Poly(vinyl) Butyral Nanofibers by the Force spinning (R) Method. Polym Eng Sci., 55(1):81-7.
• [20] Topkaya T., Çelik Y.H., Kilickap E. Mechanical properties of fiber/graphene epoxy hybrid composites. Journal of Mechanical Science and Technology v (34), P,4589–4595.