Abstract
Fiber reinforced polymer (FRP) composite structures are widely being used in aircraft wings, wind turbine blades, helicopter rotor blades and tail rotors. These structures are often exposed to external dynamic loads which shorten their lifetime. Carbon nanotubes (CNT) reinforced epoxy resin have distinctive characteristic in providing a significant increase in mechanical properties and stiffness of the FRP composite. The present study investigates the micro, macro and structural analysis of composites with and without reinforcement of multi walled carbon nanotubes (MWCNT). The carboxylic acid (COOH) functionalized MWCNT with more than 95% chemical purity having average dimensions of 17 nm outer diameter and 10 μm length were used to characterize their chemical properties and evaluate the mechanical and free and forced vibration response of composites with and without MWCNT reinforcement. Initially, the powder form of the MWCNT was taken for the identification of true density (ρ) using the gas displacement technique. The COOH-MWCNT were then randomly dispersed in low viscosity epoxy resin (LY556) through an organic solvent using the ultrasonic liquid processor. Test samples were fabricated by adding the hardener (HY951) at 10:1 ratio in the sonicated solution to obtain the Young’s Modulus (E) of MWCNT using Nano Indentation. Following this, Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Fourier Transform Infrared spectroscopy (FT-IR), Thermo gravimetric analysis (TGA) were also used to quantify the dispersion, distribution, structural integrity, aspect ratio, functional group and purity level of nanotubes. Further, the impact hammer test based on ASTM E1876, tensile test based on ASTM D3039 and free and forced vibration analysis of the hybrid composite beams were carried out to identify the elastic properties, fundamental natural frequencies, damping ratio and transverse deflection of the hybrid structure. It was shown that the addition of 1 wt% of COOH-MWCNT in fiber reinforced composite beam increases the stiffness of the structure and consequently increases the natural frequencies and damping at each resonant response dominant peaks. The strong adhesion of bonding and proper dispersion of CNTs in the wide surface area of composite strengthen the polymer composites substantially than those of the Glass/epoxy composite structures without reinforcement of MWCNT.
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14 July 2020
In the original article, the first author A. Paul Praveen���s name was mentioned incorrectly in the author list. The details given in this correction are correct.
References
Iijima S (1991) Helical microtubules of graphitic carbon. Nature 354:56–58
Godara A, Mezzo L, Luizi A, Lomov SV, Vuure AWV, Gorbatikh L, Moldenaers P, Verpoest I (2009) Influence of carbon nanotube reinforcement on the processing and the mechanical behaviour of carbon fiber/epoxy composites. Carbon 47:2914–2923
Zhou K, Shin E, Wang KW, Bakis CE (2004) Interfacial damping characteristics of carbon nanotube-based composites. Compos Sci Technol 64(15):2425–2437
Xie XL, Mai YW, Zhou XP (2005) Dispersion and alignment of carbon nanotubes in polymer matrix: a review. Mater Sci Eng 49(4):89–112
Veedu VP, Cao A, Li X, Ma K, Soldano C, Kar S, Ajayan PM, Ghasemi-Najhad MN (2006) Multifunctional composites using reinforced laminae with carbon-nanotube forests. Nat Mater 5:457–462
Bekyarova E, Thostenson ET, Yu A, Kim H, Gao J, Tang J, Hahn HT, Chou TW, Itkis ME, Haddon RC (2007) Multiscale carbon nanotube-carbon fiber reinforcement for advanced epoxy composites. Langmuir 23(7):3970–3974
Lau KT, Hui D (2002) The revolutionary creation of new advanced materials-carbon nanotube composites. Compos Part B 33:263–277
Thostenson ET, Li C, Chou TW (2005) Nanocomposites in context. Compos Sci Technol 65(3):491–516
Lehman JH, Terrones M, Mansfield E, Hurst KE, Meunier V (2011) Evaluating the characteristics of multiwall carbon nanotubes. Carbon 49(8):2581–2602
Singh BP, Saini K, Choudhary V, Teotia S, Pande S, Saini P, Mathur RB Effect of length of carbon nanotubes on electromagnetic interference shielding and mechanical properties of their reinforced epoxy composites. J Nanopart Res 16(1):2161–2171
Arash A, Wang Q, Varadan VK (2014) Evaluating the characteristics of multiwall carbon nanotubes. Sci Report. https://doi.org/10.1038/srep06479
Wernik JM, Meguid SA (2014) On the mechanical characterization of carbon nanotube reinforced epoxy adhesives. Mater Des 59:19–32
Tarfaoui M, Lafdi K, Moumen A (2016) El.: mechanical properties of carbon nanotubes based polymer composites. Compos Part B 103(5):113–121
Prusty RK, Rathore DK, Shukla MJ, Ray BC (2015) Flexural behaviour of CNT-filled glass/epoxy composites in an in-situ environment emphasizing temperature variation. Compos Part B 83:166–174
Mahato KK, Rathore DK, Prusty RK, Dutta K, Ray BC (2017) Tensile behavior of MWCNT enhanced glass fiber reinforced polymeric composites at various crosshead speeds. IOP Conf Ser: Mater Sci Eng 178:1–7
Fan Z, Santare MH, Advani SG (2008) Interlaminar shear strength of glass fiber reinforced epoxy composites enhanced with multi-walled carbon nanotubes. Compos Part A 39(3):540–554
Garcia EJ, Wardle BL, Hart AJ, Yamamoto N (2008) Fabrication and multifunctional properties of a hybrid laminate with aligned carbon nanotubes grown In Situ. Compos Sci Technol 68(9):2034–2041
Rawat P, Singh KK (2016) A strategy for enhancing shear strength and bending strength of FRP laminate using MWCNT. IOP Conf Ser: Mater Sci Eng. https://doi.org/10.1088/1757-899X/149/1/012105
Farrash SMH, Shariati M, Rezaeepazhand J (2017) The effect of carbon nanotube dispersion on the dynamic characteristics of unidirectional hybrid composites: an experimental approach. Compos Part B 122:1–8
Coleman JN, Khan U, Blau WJ, Gun’ko YK (2006) Small but strong: a review of the mechanical properties of carbon nanotube–polymer composites. Carbon 44(9):1624–1652
Jakkamputi LP, Rajamohan V (2017) Dynamic characterization of CNT-reinforced hybrid polymer composite beam under elevated temperature—an experimental study. Polym Compos. https://doi.org/10.1002/pc.24668
Khan SU, Li CY, Siddiqui NA, Kim JK (2011) Vibration damping characteristics of carbon fiber-reinforced composites containing multi-walled carbon nanotubes. Compos Sci Technol 71:486–1494
Kouklin N (2005) Self-assembled network of carbon nanotubes synthesized by chemical vapor deposition in alumina porous template. Appl Phys Lett https://doi.org/10.1063/1.2119420
Misra A, Tyagi PK, Singh MK, Misra DS (2006) FTIR studies of nitrogen doped carbon nanotubes. J Diam Relat Mater 15(2):385–388
Osswald S, Havel M, Gogotsi Y (2007) Monitoring oxidation of multiwalled carbon nanotubes by Raman spectroscopy. J Raman Spectrosc 38(6):728–736
Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio by Impulse Excitation of Vibration. ASTM E1876, ASTM International, United States, 1–17
Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials. ASTM D3039, ASTM International, United States, 1–13
Funding
Authors are grateful to DST-SERB, India for providing financial support through the project entitled “A study of structural damping and forced vibration responses of carbon nanotube reinforced rotation tapered hybrid composite plates” under the Grant No. ETA-0009-2014 to carry out this work.
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A, P., Rajamohan, V. & Mathew, A. Material and Mechanical Characterization of Multi-Functional Carbon Nanotube Reinforced Hybrid Composite Materials. Exp Tech 43, 301–314 (2019). https://doi.org/10.1007/s40799-019-00316-0
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DOI: https://doi.org/10.1007/s40799-019-00316-0