Investigation of the mechanical properties of nanocomposite SWCNTS/epoxy by micromechanics methods and experimental works
| Autor: | G. S. Abdel Hafeez, Ahmed K. Abdellatif, S. M. Aldousari, Hassan S. Hedia |
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| Rok vydání: | 2015 |
| Předmět: |
Nanocomposite
Materials science Micromechanics Ocean Engineering Young's modulus Experimental Work Carbon nanotube Epoxy law.invention symbols.namesake SWCNT law visual_art Volume fraction Ultimate tensile strength symbols visual_art.visual_art_medium Mechanical Properties Composite material Elastic modulus |
| Zdroj: | Journal of Naval Architecture and Marine Engineering; Vol. 12 No. 2 (2015); 103-114 |
| ISSN: | 2070-8998 1813-8535 |
| Popis: | In the present paper, the stiffening effect of carbon nanotubes is quantitatively investigated by micromechanics methods. The Mori-Tanaka effective-field method is employed to calculate the effective elastic moduli of composites with aligned or randomly oriented straight nanotubes. In addition, the epoxy resin is modified experimentally by adding SWCNT with different ratio i.e 0, 0.1, 0.3, 0.5 and 0.7 wt.-% . A comparison between the results for SWCNT/epoxy nanocomposite which obtained analytically and experimentally is done. In the experimental work the epoxy resin is modified by adding SWCNT with different ratio i.e 0, 0.1, 0.3, 0.5 and 0.7 wt.-% . The materials are characterized in tension to obtain the mechanical properties of SWCNT/epoxy nanocomposite experimentally. The results of micromechanics methods indicated that the CNTs are highly anisotropic, with Young’s modulus in the tube direction two orders of magnitude higher than that normal to the tube. The results shows a nanotube volume fraction of 0.3%of SWCNT improve all mechanical properties such as the tensile strength, modulus of elasticity and the toughness. Avoid the volume fraction greater than 0.5% SWCNT. The optimal value achieved experimentally, (at 0.3% SWCNT) lies between the analytical values (that achieved parallel to the CNT and the randomly orientated straight CNTs ) . |
| Databáze: | OpenAIRE |
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