Development of New Models for Tensile Modulus of Metal/Carbon Nanotubes Nanocomposites

The current paper studies the development of new models for the prediction of tensile modulus in metal/carbon nanotubes (CNTs) nanocomposites. Several composite models such as the Hirsch, Hui–Shia, developed Halpin–Tsai for 3D fillers and Lewis–Nielsen models can present appropriate predictions compared to experimental results of a Cu/multiwalled CNTs (MWCNTs) sample. Furthermore, Takayanagi model reveals that the effect of the interface phase should be considered for the present nanocomposite. Therefore, an appropriate evaluation of the thickness and modulus of the interphase is carried out by the Ji model. In addition, new models are developed based on the modified rule of mixtures and Kerner–Nielsen models. Many ineffective and difficultly characterized parameters are eliminated from the suggested models. The developed models demonstrate the best predictability together with significant simplicity for the calculation of tensile modulus in nanocomposites.