Axial compression based hyper elastic modeling of buckling response in single wall carbon nanotubes
نویسندگان
چکیده
This paper presents a hyper elastic finite element-based lattice access for the illustration of post-buckling reaction in single wall carbon nanotubes (SWCNTs). A one-term incompressible Ogden-type hyper elastic model is taken in under axial compression to describe mechanical response of SWCNTs. Numerical experiments are transferred and the results are juxtapose to finite atomistic simulations, indicating the forecasting capabilities of the present model in seizing buckling manner and the main deformation mechanisms under huge thorough deformations.
منابع مشابه
Modeling and Analysis of Carbon Nanotube Buckling Using Thick Shell Theory
Treated herein is the elastic buckling problem of Single-Walled Carbon Nanotubes (SCNTs) under axial compression. Critical buckling strains cr ε of stocky SCNTs (length/diameter less than 8) that have been obtained by modeling them as first-order shear deformation (thick) shell theory (FSDST). The buckling strains are compared with those obtained by commonly used thin shell theories, such as th...
متن کاملCurvature Effects on Thermal Buckling Load of DWCNT Under Axial Compression Force
In this article, curvature effects on elastic thermal buckling of double-walled carbon nanotubes under axially compressed force are investigated using cylindrical shell model. Also, the small scale effect is taken into account in the formulation. The dependence of the interlayer van der Waals (vdW) pressure on the change of the curvatures of the inner and outer tubes at that point is considered...
متن کاملMacroscopic properties of carbon nanotubes from molecular-mechanics simulations
Results of molecular-mechanics simulations of axial and torsional deformations of a single wall carbon nanotube are used to find Young’s modulus, the shear modulus, and the wall thickness of an equivalent continuum tube made of a linear elastic isotropic material. These values are used to compare the response of the continuum tube in bending and buckling with that obtained from the molecular me...
متن کاملStructural Mechanics Approach to Investigate the Hyperelastic Mechanical Behavior of Single and Multi-wall Carbon Nanotubes
In the current research, a three-dimensional finite element model was considered to predict the mechanical behavior of Single Wall (SWCNTs) and Multi Wall Carbon Nanotubes (MWCNTs). Assuming the nonlinear elastic behavior of C-C bond in large strains, hyperelastic models were considered. Literature review revealed that the material parameters of the hyperelastic models have been determined from...
متن کاملOn the Buckling Response of Axially Pressurized Nanotubes Based on a Novel Nonlocal Beam Theory
In the present study, the buckling analysis of single-walled carbon nanotubes (SWCNT) on the basis of a new refined beam theory is analyzed. The SWCNT is modeled as an elastic beam subjected to unidirectional compressive loads. To achieve this aim, the new proposed beam theory has only one unknown variable which leads to one equation similar to Euler beam theory and is also free from any shear ...
متن کامل