Modal Analysis of Micro and Nanowires Using  Finite Element Softwares

Mercan, Kadir; Cívalek, Ömer

doi:10.24107/ijeas.528290

Cited by 6 publications

(6 citation statements)

References 22 publications

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“…The length and diameter of nanotube is variable with ratio from 0 to 0.1. Size dependent continuum mechanic results in harmony with our previous studies [45][46][47][48][49][50][51][52][53][54][55][56] and MD simulation results.…”

Section: Numerical Resultssupporting

confidence: 90%

Comparative Stability Analysis of Boron Nitride Nanotube using MD Simulation and Nonlocal Elasticity Theory

Mercan

Cívalek²

2021

International Journal of Engineering and Applied Sciences

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Boron Nitride Nanotube (BNNT) is a promising nano sized structure with superior electrical, physical, and mechanical properties comparing to Carbon nanotube. Higher Young's modulus, oxidation resistance, hardness, corrosion resistance, durability in high temperature, piezoelectric and pyroelectric characteristics are some featured characteristics of BNNT. In this paper the critical buckling load of Boron Nitride Nanotube is investigated. Two different method is used. First Eringen's nonlocal elasticity theory is employed to obtain sizedependent critical buckling loads. Then, LAMMPS software is used to simulate molecular dynamics and obtain critical buckling loads. Zigzag (5,5) BNNT with 400 atoms is examined into MD simulation analyzes.

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Section: Numerical Resultssupporting

confidence: 90%

Comparative Stability Analysis of Boron Nitride Nanotube using MD Simulation and Nonlocal Elasticity Theory

Mercan

Cívalek²

2021

International Journal of Engineering and Applied Sciences

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“…As setting up a new laboratory to perform nano sized analyzes can reach astronomical costs, researchers prefer to perform analyzes using classical mechanic [16][17][18][19] which leads to give non-accurate results, higher order continuum mechanics theories such as strain gradient [20][21][22][23], couple stress [21,[24][25][26], nonlocal elasticity [27][28][29][30], surface elasticity [31][32][33][34][35] etc. Furthermore, finite element [36,37] and DSC method [38][39][40][41][42][43] methods were also used to perform analyzes without the need of a lab. On the other hand, modal and bending analyzes of nanostructures has been one of the most applied investigation on nanostructures [44][45][46][47][48][49][50][51][52].Theoretical works were promising in case of the ability to perform hundreds of analyzes in very short time [38,[53][54][55][56][57]…”

Section: Introductionmentioning

confidence: 99%

Critical Buckling Load of SiCNTs: A Molecular Dynamics Study on Gas Sensing

Mercan

Cívalek

2022

International Journal of Engineering and Applied Sciences

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Silicon carbide nanotube (SiCNT) come forward in the great variety of nanotubes with higher durability until 1600 oC (in air) while carbon nanotube can stay stable until 600 oC (in air). First five buckling loads of single SiCNT placed between source and drain metal electrodes in nano sized field effect transistors (FET) is investigated using two different molecular dynamics methods. L.A.M.M.P.S. software and Gromacs package is used to perform molecular dynamics analyzes. Armchair structure of SiCNT with chiralities (10,0), (12, 0), (14, 0), (16, 0) were selected with 400, 480, 560, 640 atoms respectively. Results demonstrate clearly that longest nanotube perform lower stability as nanotubes becomes fragile with more atom numbers. Except from (10, 0) armchair SiCNT, first mode occurs at lowest load and rise as the number of mode arise.

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“…Twodimensional analysis was carried out with the help of ANSYS, which is based on the Finite Element Method (FEM). Mercan and Civalek [35] present a fast and accurate method for determining the frequencies of microwires and nanowires, which are widely used in nanosensors, nanocircuits, and a variety of other scientific fields. COMSOL software is used to investigate the modal analysis of micro and nanowires.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Consolidation Behavior of Soft Soil Improved with Vertical Drains by Finite Element Method

Akan

Sert

2021

International Journal of Engineering and Applied Sciences

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The primary consolidation may take long time due to the low permeability of clay soils in such cases soil improvement may be required to shorten the consolidation time, increase shear strength, and therefore bearing capacity. Preloading is one of the commonly used methods to consolidate soils before actual load and to strengthen weak compressible soils. In cases with time problems, the use of prefabricated vertical drains (PVD) with pre-loading shortens the drainage path and reduces the consolidation time by taking advantage of the horizontal permeability of the soils is generally higher. In this study, an embankment constructed at different load rates with constant accelerates and analyzes were performed for the non-drained and drained conditions of clay soils with PVDs are in 2m, 1m, and 0.5m intervals. In this way, the effect of load rate and PVD usage on consolidation settlement and excess pore pressures in underlying low permeable clayey soil was investigated.

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Modal Analysis of Micro and Nanowires Using Finite Element Softwares

Cited by 6 publications

References 22 publications

Comparative Stability Analysis of Boron Nitride Nanotube using MD Simulation and Nonlocal Elasticity Theory

Comparative Stability Analysis of Boron Nitride Nanotube using MD Simulation and Nonlocal Elasticity Theory

Critical Buckling Load of SiCNTs: A Molecular Dynamics Study on Gas Sensing

Investigation of the Consolidation Behavior of Soft Soil Improved with Vertical Drains by Finite Element Method

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