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Universal Journal of Materials Science Vol. 6(1), pp. 8 - 19
DOI: 10.13189/ujms.2018.060102
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Investigation of the Hygrothermal Effect on the Nanocomposite Material under High Strain Rate Torsion

Fadhel Abbas Abdullah ^*, Zahra khalid Hamdan
College of Engineering, Al-Mustansiriayah University, Baghdad, Iraq

ABSTRACT

This study aims to explain the effect of high strain rate torsion on unidirectional fiber glass / epoxy composite with and without adding nano particles (carbon and alumina) with weight percentage 2% and study the effect of the temperature and humidity on the samples under torsion dynamic test. Using the torsional Hopkinson split bar to testing under angle of the twist 胃=10掳. It can noticed that the maximum of the shear (stress, strain) of the composite increased with adding nano particles by rate of (24.8%, 3.2%) with added 2% nano carbon and (26%, 8.5%) with added 2% nano alumina, where the shear stress, shear strain and shear strain rate of all samples decreased with increasing (temperature and humidity) with different percentages. Finally, it was modifying Johnson-Cook constitutive model by adding parameter represented the humidity effect to simulate the experimental results, and then it was found the error percentages between the experimental results and theoretical results which range (0.0044% and 15.5%).

KEYWORDS
Nanocomposite, Hopkinson, Hygrothermal Effect, High Strain Rate Torsion

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Fadhel Abbas Abdullah , Zahra khalid Hamdan , "Investigation of the Hygrothermal Effect on the Nanocomposite Material under High Strain Rate Torsion," Universal Journal of Materials Science, Vol. 6, No. 1, pp. 8 - 19, 2018. DOI: 10.13189/ujms.2018.060102.

(b). APA Format:
Fadhel Abbas Abdullah , Zahra khalid Hamdan (2018). Investigation of the Hygrothermal Effect on the Nanocomposite Material under High Strain Rate Torsion. Universal Journal of Materials Science, 6(1), 8 - 19. DOI: 10.13189/ujms.2018.060102.