%0 Journal Article
%T Static Crack Propagation of Carbon Nanotube through Non-Bonded Interface of Nanocomposites
%A Khondaker Sakil Ahmed
%A Ang Kok Keng
%J World Journal of Nano Science and Engineering
%P 42-49
%@ 2161-4962
%D 2014
%I Scientific Research Publishing
%R 10.4236/wjnse.2014.42007
%X <div align=\"justify\">
	This study presents an analytical shear-lag model to illustrate the interface crack propagation of carbon nanotube (CNT) reinforced polymer-matrix composites (PMCs) using representative volume element (RVE). In the model, a 3D cylindrical RVE is picked to present the nanocomposite in which CNT/polymer chemically non-bonded interface is taken into consideration. In the non-bonded interface, the stress transfer of CNT is generally considered to be controlled by the combined contribution of mechanical interlocking, thermal residual stress, Poisson¡¯s contraction and van der Waals (vdW) interaction. Since CNT/matrix interface becomes debonded due to crack propagation, vdW interaction which is a function of relative radial displacement of the CNT/matrix interface makes the modeling of the interface tricky and challenging. In order to solve this complexity, an iterative approach is proposed to calculate the vdW interaction for debonded CNT/matrix interface accurately. The analytical results aim to obtain the characteristics load displacement relationship in static crack propagation for CNT reinforced PMCs.
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%K Polymer-Matrix Composites (PMCs)
%K Interface
%K Computational Modelling
%K Crack Propagation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=45745