Numerical Simulation of the Mechanical Behaviour of Single-Walled Carbon Nanotube Heterojunctions

2016 ◽  
Vol 38 ◽  
pp. 73-87 ◽  
Author(s):  
Nataliya A. Sakharova ◽  
André F.G. Pereira ◽  
Jorge M. Antunes ◽  
José Valdemar Fernandes
Keyword(s):  
Carbon Nanotube ◽  
Mechanical Behaviour ◽  
Torsional Rigidity ◽  
Three Dimensional ◽  
Element Model ◽  
Elastic Behaviour ◽  
Bending Rigidity ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Three Dimensional Finite Element

The study of the mechanical behaviour of single-walled carbon nanotube heterojunctions has been carried out, implementing nanoscale continuum approach. A three-dimensional finite element model is used in order to evaluate the elastic behaviour of cone heterojunctions. It is shown that the bending rigidity of heterojunctions is sensitive to bending conditions. The torsional rigidity does not depend on torsion conditions. Both rigidities of the heterojunction are compared with those of the thinner and thicker constituent nanotubes.

scholarly journals Mechanical Characterisation of Single-Walled Carbon Nanotube Heterojunctions: Numerical Simulation Study

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5100
Author(s):  
André F. G. Pereira ◽  
Jorge M. Antunes ◽  
José V. Fernandes ◽  
Nataliya Sakharova
Keyword(s):  
Carbon Nanotube ◽  
Elastic Properties ◽  
Three Dimensional ◽  
Element Model ◽  
Elastic Behaviour ◽  
Geometrical Parameters ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Wide Range ◽  
Three Dimensional Finite Element

The elastic properties of single-walled carbon nanotube heterojunctions were investigated using conventional tensile, bending and torsion tests. A three-dimensional finite element model was built in order to describe the elastic behaviour of cone heterojunctions (armchair–armchair and zigzag–zigzag). This comprehensive systematic study, to evaluate the tensile, bending and torsional rigidities of heterojunctions, enabled the formulation analytical methods for easy assessment of the elastic properties of heterojunctions using a wide range of their geometrical parameters.

Fabrication of Three-Dimensional Single-Walled Carbon Nanotube Networks Suspended on Si Pillar Architecture

2017 ◽  
Vol 17 (8) ◽  
pp. 5900-5902
Author(s):  
Jongtaek Lee ◽  
Junyoung Lee ◽  
Jonghee Yang ◽  
Taehun Park ◽  
Sang Jung Ahn ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Three Dimensional ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Carbon Nanotube Networks

Design Analysis of a Twin Head Horizontal Hydraulic Press

1992 ◽  
Vol 114 (3) ◽  
pp. 289-293
Author(s):  
U. P. Singh ◽  
P. P. Miller
Keyword(s):  
Finite Element ◽  
Torsional Rigidity ◽  
Three Dimensional ◽  
Element Model ◽  
Hydraulic Press ◽  
Design Analysis ◽  
Assembly Work ◽  
The Press ◽  
And Performance ◽  
Three Dimensional Finite Element

Because of economical reasons, use of the single or multi-head hydraulic press is finding popularity in recent times in assembly work for automotive parts in particular. As this type of press offers opportunity for large parts to be assembled with ease, their design and performance poses complexity and challenge to press designers in regard to the high precision required by assembly work. This paper deals with the design analysis of a twin head horizontal press using the finite element method. The three-dimensional finite element model, developed for the press, gives quantitative results useful to press designers. Some suggestions are made to improve the stiffness and torsional rigidity of the press.

Finite Element Prediction of Mechanical Behaviour under Bending of Honeycomb Sandwich Panels

2014 ◽  
Vol 980 ◽  
pp. 81-85 ◽  
Author(s):  
Kaoua Sid-Ali ◽  
Mesbah Amar ◽  
Salah Boutaleb ◽  
Krimo Azouaoui
Keyword(s):  
Finite Element ◽  
Mechanical Behaviour ◽  
Three Dimensional ◽  
Sandwich Panels ◽  
Element Model ◽  
Shell Elements ◽  
Numerical Characterization ◽  
Bending Load ◽  
Accurate Stress Analysis ◽  
Three Dimensional Finite Element

This paper outlines a finite element procedure for predicting the mechanical behaviour under bending of sandwich panels consisting of aluminium skins and aluminium honeycomb core. To achieve a rapid and accurate stress analysis, the sandwich panels have been modelled using shell elements for the skins and the core. Sandwich panels were modelled by a three-dimensional finite element model implemented in Abaqus/Standard. By this model the influence of the components on the behaviour of the sandwich panel under bending load was evaluated. Numerical characterization of the sandwich structure, is confronted to both experimental and homogenization technique results.

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