Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Modeling a suspended nanotube oscillator
Date
2005-03-01
Author
Toffoli, Hande
Arias, TA
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
187
views
0
downloads
Cite This
We present a general study of oscillations in suspended one-dimensional elastic systems clamped at each end, exploring a wide range of slack (excess length) and downward external forces. Our results apply directly to recent experiments in nanotube and silicon nanowire oscillators. We find the behavior to simplify in three well-defined regimes which we present in a dimensionless phase diagram. The frequencies of vibration of such systems are found to be extremely sensitive to slack.
Subject Keywords
Mechanical Engineering
,
General Materials Science
,
Bioengineering
,
General Chemistry
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/48242
Journal
NANO LETTERS
DOI
https://doi.org/10.1021/nl0481371
Collections
Department of Physics, Article
Suggestions
OpenMETU
Core
Computation of Thermal Fracture Parameters for Inclined Cracks in Functionally Graded Materials Using Jk-Integral
Dağ, Serkan (Informa UK Limited, 2009-01-01)
This article describes the formulation and implementation of the Jk-integral for the analysis of inclined cracks located in functionally graded materials (FGMs) that are subjected to thermal stresses. The generalized definition of the Jk-integral over a vanishingly small curve at the tip of an inclined crack is converted to a domain independent form that consists of area and line integrals defined over finite domains. A numerical procedure based on the finite element method is then developed, which allows t...
An algorithm for constructing various kinds of nanojunctions using zig-zag and armchair nanotubes
Tasci, Emre; Erkoç, Şakir (American Scientific Publishers, 2007-04-01)
A method for generating various forms of junctions involving armchair and zig-zag nanotubes, firstly introduced by Zsoldos et al., is developed to cover all types of armchair and zig-zag nanotubes in a systematical way. This method can also be used to produce nanogears and toothed canals. The method is explained and flowcharts are included to aid in programming into a code.
An atomistic study on the stretching of nanowires
Mehrez, H; Ciraci, S; Fong, CY; Erkoç, Şakir (IOP Publishing, 1997-12-08)
In this work we present an atomic-scale investigation of elastic and plastic deformation, and force variations in metal nanowires that are pulled from their ends. The atomic simulations are performed by using a molecular dynamics method with an empirical two-body potential; the effect of the initial size, shape, temperature and rate of stretching on the necking and fracture are investigated. We find that the necking occurs mainly due to the formation of a new layer with a smaller cross-section after every s...
Evaluation of the radiative recombination mechanism in Si nanocrystals embedded in silica matrix
Righini, Marcofabio; Gnoli, Andrea; Razzari, Luca; Serincan, Ugur; Turan, Raşit (American Scientific Publishers, 2008-02-01)
We report measurements of the temperature dependence of photoluminescence (PQ life-time and efficiency of Si nanocrystals (Si-Nc) embedded in silica matrix. We use a practical technique based on lock-in acquisition that allows us to simultaneously evaluate, at each emission-energy, intensity and decay-time of the detected signal. Samples are prepared by Silicon-ion implantation in a SiO2 layer followed by thermal annealing. The implantation dose of Si ions ranges between 2 x 10(16) cm(-2) and 2 x 10(17) cm(...
Prediction of forming limit curve at fracture for sheet metal using new ductile fracture criterion
Dizaji, Shahram Abbasnejad; Darendeliler, Haluk; KAFTANOĞLU, BİLGİN (Elsevier BV, 2018-05-01)
The application of ductile fracture criteria (DFCs) in numerical analysis of sheet metal forming processes can lead to the accurate determination of the fracture initiation. In this study, a new uncoupled ductile fracture criterion (DFC) has been developed which considers the effects of material parameters on the forming limit curves (FLCs) and can be easily implemented in the finite element codes. Two different constitutive models have been employed with the new DFC in order to evaluate the results obtaine...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
H. Toffoli and T. Arias, “Modeling a suspended nanotube oscillator,”
NANO LETTERS
, pp. 523–526, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48242.