An improved pull-out model for the carbon nanotube/nanofiber-reinforced polymer composites with interfacial defects

2014 ◽  
Vol 37 (1) ◽  
pp. 229-240 ◽  
Author(s):  
Zixing Lu ◽  
Mingyang Chen ◽  
Zhenyu Yang
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Pull Out ◽  
Reinforced Polymer ◽  
Interfacial Defects

Electrothermomechanical Modeling and Analyses of Carbon Nanotube Polymer Composites

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
S. Xu ◽  
O. Rezvanian ◽  
M. A. Zikry
Keyword(s):  
Finite Element ◽  
Carbon Nanotube ◽  
Polymer Composites ◽  
Volume Fraction ◽  
Electron Tunneling ◽  
Three Dimensional ◽  
Fe Modeling ◽  
Aspect Ratios ◽  
Reinforced Polymer ◽  
Polymer Dispersions

A new finite element (FE) modeling method has been developed to investigate how the electrical-mechanical-thermal behavior of carbon nanotube (CNT)–reinforced polymer composites is affected by electron tunneling distances, volume fraction, and physically realistic tube aspect ratios. A representative CNT polymer composite conductive path was chosen from a percolation analysis to establish the three-dimensional (3D) computational finite-element (FE) approach. A specialized Maxwell FE formulation with a Fermi-based tunneling resistance was then used to obtain current density evolution for different CNT/polymer dispersions and tunneling distances. Analyses based on thermoelectrical and electrothermomechanical FE approaches were used to understand how CNT-epoxy composites behave under electrothermomechanical loading conditions.

Utilizing interfaces in carbon nanotube reinforced polymer composites for structural damping

2006 ◽  
Vol 41 (23) ◽  
pp. 7824-7829 ◽  
Author(s):  
Pulickel M. Ajayan ◽  
Jonghwan Suhr ◽  
Nikhil Koratkar
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Structural Damping ◽  
Reinforced Polymer

Nondimensional Analysis of Interfacial Stresses of Wavy CNT/Polymer Composites

2008 ◽  
Author(s):  
K. Yazdchi ◽  
M. Salehi
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Analytical Model ◽  
Stress Transfer ◽  
Interfacial Shear ◽  
Linear Regression Method ◽  
Shear Stresses ◽  
Interfacial Stresses ◽  
Single Walled Carbon Nanotube ◽  
Reinforced Polymer

In this paper, with introducing a new simplified 3-D Representative Volume Element (RVE) for a wavy carbon nanotube (CNT), an analytical model has been developed to study the stress transfer in single-walled carbon nanotube (SWNT) reinforced polymer composites (NRPCs). The model is capable of predicting axial as well as interfacial shear stresses, along a wavy CNT embedded in a matrix. Based on the pullout modeling technique, the effects of waviness, wavelength and matrix modulus on axial and interfacial shear stresses have also been analyzed in details also using the statistical multiple non-linear regression method, the best-fitted functions for the interfacial stresses of CNT/polymer composites are obtained. The results of the present analytical model are in good agreements when compared with the corresponding results for straight NTs.

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