Numerical Simulation of Nanoindentation of Single Wall Carbon Nanotube Reinforced Epoxy Composite

Minh-Tai Le; Shyh Chour Huang

doi:10.4028/www.scientific.net/AMM.764-765.66

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Numerical Simulation of Nanoindentation of Single Wall Carbon Nanotube Reinforced Epoxy Composite
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 764-765Numerical Simulation of Nanoindentation of Single...

Numerical Simulation of Nanoindentation of Single Wall Carbon Nanotube Reinforced Epoxy Composite

Abstract:

Polymer/Carbon nanotube nanocomposites have attracted major research and commercial interests due to their superior mechanical and electrical properties. Characterizing mechanical properties of these nanocomposites has been always a challenge. The present study is to develop representative volume element method for modeling of nanoindentation behavior of Epoxy/Single wall carbon nanotubes (SWCNTs) nanocomposites that have nonlinear elastic reponse using finite element analysis. A series of two dimensional simulations were done to obtain stress-strain curve and load-displacement response of elastic-plastic material. The results indicated that the nanoindentation finite element models were able to simulate the loading-unloading responses of the Epoxy/SWCNTs nanocomposites. Besides, the relative influences on the load-displacement response are investigated, including mesh geometry, indenter radius and friction coefficient. Furthermore, these simulated results show good agreement with experimental data from literature. The reasearch results are very useful for studying the nanosize scale material properties such as hardness as well as elastic modulus of Polymer/Carbon nanotube nanocomposite in the future.