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Mechanics of Advanced Materials and Structures Volume 26, 2019 - Issue 11
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Original Articles

Evaluation of fracture energy for nanocomposites reinforced with carbon nanotubes using numerical and micromechanical methods

Mahdiye HamediMechanical Engineering Department, Shahrekord University, Shahrekord, Charmahal and Bakhtiari, Iran
,
Hossein GolestanianFaculty of Engineering, Shahrekord University, Shahrekord, Charmahal and Bakhtiari, IranCorrespondence[email protected]
,
Yaghoub Tadi BeniFaculty of Engineering, Shahrekord University, Shahrekord, Charmahal and Bakhtiari, Iran
&
Kamran Alasvand ZarasvandMechanical Engineering Department, Shahrekord University, Shahrekord, Charmahal and Bakhtiari, Iran
Pages 984-992 | Received 08 Jul 2017, Accepted 06 Nov 2017, Published online: 08 Feb 2018
 
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ABSTRACT

This research presents numerical and micromechanical investigations of the effects of carbon nanotube (CNT) weight fraction on nanocomposites fracture energy. For this reason, numerical models consisting of 0.1, 0.2, and 0.5% CNT weight fractions are developed based on TEM image taken from nanocomposite samples. Fracture energy of these nanocomposites is determined using finite element simulations and micromechanics models. To determine the crack growth path and fracture parameters, mixed mode loading was applied on the nanocomposites. Also, fracture energy is determined using FESEM images along with numerical analysis. Finally, the numerical results were compared with experimental measurements found in the literature.

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