Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

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, 2010

Studies 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:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

University of Manchester selects Anasys AFM-IR for coatings and corrosion research July 30th, 2014

Nature inspires a greener way to make colorful plastics July 30th, 2014

Analytical solutions from Malvern Instruments support University of Wisconsin-Milwaukee researchers in understanding environmental effects of nanomaterials July 30th, 2014

FEI Unveils New Solutions for Faster Time-to-Analysis in Metals Research July 30th, 2014

Academic/Education

University of Manchester selects Anasys AFM-IR for coatings and corrosion research July 30th, 2014

Haydale Announces Collaboration Agreement with Swansea University’s Welsh Centre for Printing and Coatings (WCPC) July 12th, 2014

STFC takes delivery of the 100th Hitachi Tabletop SEM in the UK July 3rd, 2014

Innovation Management and the Emergence of the Nanobiotechnology Industry July 1st, 2014

Nanotubes/Buckyballs

SouthWest NanoTechnologies Names NanoSperse as A SWeNT Certified Compounder July 29th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

UCF Nanotech Spinout Developing Revolutionary Battery Technology: Power the Next Generation of Electronics with Carbon July 23rd, 2014

University of Houston researchers create new method to draw molecules from live cells: Technique using magnetic nanomaterials offers promise for diagnosis, gene therapy July 17th, 2014

Sensors

Production of Toxic Gas Sensor Based on Nanorods July 28th, 2014

Compact Vibration Harvester Power Supply with Highest Efficiency Opens Door to “Fix-and-Forget” Sensor Nodes July 23rd, 2014

Nano-sized Chip "Sniffs Out" Explosives Far Better than Trained Dogs: TAU researcher's groundbreaking sensor detects miniscule concentrations of hazardous materials in the air July 23rd, 2014

Tiny laser sensor heightens bomb detection sensitivity July 19th, 2014

Announcements

University of Manchester selects Anasys AFM-IR for coatings and corrosion research July 30th, 2014

Nature inspires a greener way to make colorful plastics July 30th, 2014

Analytical solutions from Malvern Instruments support University of Wisconsin-Milwaukee researchers in understanding environmental effects of nanomaterials July 30th, 2014

FEI Unveils New Solutions for Faster Time-to-Analysis in Metals Research July 30th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE