Home > Press > New Research Optimizes Application of Carbon Nanotubes
Abstract:
Iranian researchers made more practical the usage of carbon nanotubes in intelligent nanostructures by carrying out new researches on them.
New Research Optimizes Application of Carbon Nanotubes
Iran | Posted on July 3rd, 2010Studies have been made in recent few years on the transverse vibrations of carbon nanotubes which improve their performance considerably by using Euler-Bernoulli and Timoshenko beam models. However, none of the said models considered the geometric form of the cylindrical shell of carbon nanotubes.
The result of this research has various applications in producing nano-drills, nano-sensors, nano-resonators, and intelligent nano-structures.
"In this research, the effect of nano scale on the free vibrations has been studied by applying Euler-Bernoulli beam, Timoshenko beam, and Donnell cylindrical shell theories. Therefore, all models have been considered to simulate carbon nanotubes and to use mechanical theories in continuous environments," Dr Qorbanpour, one of the researchers at the Institute of Nanoscience and Nanotechnology of University of Kashan, told the Iran Nanotechnology Initiative Council.
"We first collected references and studied them to obtain equations of motion for Euler-Bernoulli beam model, Timoshenko beam models, and Donnell cylindrical shell model. Then we solved the equations by considering the effect of nano scale, Van der Waals forces between the inner and outer carbon nanotubes for double-walled carbon nanotubes in equations of motion, and buckling modes by applying the boundary conditions of the simple fulcrum as sine functions," he added, noting, "Next, we calculated the natural frequencies. In the end, we compared the theories of Euler-Bernoulli beam, Timoshenko beam, and Donnell cylindrical shell."
The research result shows that contrary to Euler-Bernoulli beam theory, Timoshenko beam theory has included the effects of the shear stress and rotary inertia momentum. Such effects are more important for carbon nanotubes with high wavenumber.
####
For more information, please click here
Copyright © FARS
If you have a comment, please Contact us.Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Bookmark:
| Related News Press |
News and information
Researchers develop molecular qubits that communicate at telecom frequencies October 3rd, 2025
Next-generation quantum communication October 3rd, 2025
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
Academic/Education
Rice University launches Rice Synthetic Biology Institute to improve lives January 12th, 2024
Multi-institution, $4.6 million NSF grant to fund nanotechnology training September 9th, 2022
Nanotubes/Buckyballs/Fullerenes/Nanorods/Nanostrings
Enhancing power factor of p- and n-type single-walled carbon nanotubes April 25th, 2025
Chainmail-like material could be the future of armor: First 2D mechanically interlocked polymer exhibits exceptional flexibility and strength January 17th, 2025
Innovative biomimetic superhydrophobic coating combines repair and buffering properties for superior anti-erosion December 13th, 2024
Sensors
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Announcements
Rice membrane extracts lithium from brines with greater speed, less waste October 3rd, 2025
Researchers develop molecular qubits that communicate at telecom frequencies October 3rd, 2025
Next-generation quantum communication October 3rd, 2025
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||