Higher-order continuum theories for buckling response of silicon carbide nanowires (SiCNWs) on elastic matrix

Mercan, Kadir; Numanoğlu, Hayri Metin; Akgöz, Bekir; Demir, Çiğdem; Cívalek, Ömer

doi:10.1007/s00419-017-1288-z

Cited by 41 publications

(33 citation statements)

References 70 publications

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“…Graphene sheets and graphene based nano-sized materials (carbon nanotubes, carbon nanowires) have limited thermal stability. Carbon based nanomaterials can stay stable only until 600 o C in air [20,21]. Due to this thermal limitation, these materials can only be used in limited applications area where these nano-sized materials will not be effected by an environment higher than 600 o C. On the other hand, scientists need to use strong nano-sized materials in environment much higher than 600 o C like aerospace.…”

Section: Fig 1 Obtaining Nanotubesmentioning

confidence: 99%

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Comparison of small scale effect theories for buckling analysis of nanobeams

Mercan¹,

Cívalek²

2017

International Journal of Engineering &Amp; Applied Sciences

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Theories which consider small scale effect have a great importance on analysis in micro and nano scale. In present paper, three kind of nanotubes (Carbon Nanotube (CNT), Boron Nitride Nanotube (BNNT), and Silicon Carbide Nanotube (SiCNT)) are analyzed in case of buckling on two parameters elastic foundation. Three different small scale theories (Nonlocal Elasticity Theory (NET), Surface Elasticity Theory (SET), and Nonlocal Surface Elasticity Theory (NET&SET)) are applied to calculate the buckling loads. Also Classical Euler-Bernoulli Beam Theory (CT) is used to see the effect of small scale effective theories. Comparative results are given for simply supported nanotubes in figures.

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Section: Fig 1 Obtaining Nanotubesmentioning

confidence: 99%

“…Buckling equation with surface effect can be obtained by using the following nonlocal Euler-Bernoulli beam model. Nonlocal Euler-Bernoulli model of nanobeams can be expressed as follows [35,36]…”

Section: Formulation For Buckling Problem Of Nanotubesmentioning

confidence: 99%

Comparison of small scale effect theories for buckling analysis of nanobeams

Mercan¹,

Cívalek²

2017

International Journal of Engineering &Amp; Applied Sciences

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“…The Poisson's ratio used for analysis in the current research is 0.37 for SiCNT and 0.25 for BNNT [49][50][51]. Moreover, CNTs can resist thermal environment up to 600 C, while SiCNT can resist up to 1000 C in the air without any damage [52,53]. BNNT and SiCNT have not been investigated as CNTs had been in the last decade.…”

Section: Introductionmentioning

confidence: 99%

“…rication and characterization of three-dimensional macroscopic all-carbon sca olds", Carbon,53, pp. 90-100 (2013).…”

mentioning

confidence: 99%

Finite Element Model and Size Dependent Stability Analysis of Boron Nitride and Silicon Carbide Nanowires/Nanotubes

2019

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In the present paper, stability analysis of boron nitride and silicon carbide nanotubes/nanowires is carried out using di erent size-e ective theories, nite element method, and computer software. Size-e ective theories used in this paper include Modi ed Couple Stress Theory (MCST), Modi ed Strain Gradient Theory (MSGT), Nonlocal Elasticity Theory (NET), Surface Elasticity Theory (SET), and Nonlocal Surface Elasticity Theory (NSET). As for the computer software, ANSYS and COMSOL multiphysics are used. Comparative results of theories and software and literature are given in the result section. Comparative results are in good harmony. In conclusion, it is clearly seen that the nonlocal elasticity theory yields the lowest results for every modes and structures, while the modi ed strain gradient theory yields the highest results.

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“…For this reason, some researchers have been used some higher order theories that take into account small-scale effect analysis of micro and nano structures [3][4][5]. Among higher order theories, nonlocal elasticity theory [6] have been widely studied recently [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Ebrahimi et al [2] presented the applicability of differential transformation method (DTM) in investigations on vibrational characteristics of FG size-dependent nanobeams.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Model of Functionally Graded Nanobeam for Free Vibration Analysis

Uzun

Yaylı

2019

International Journal of Engineering and Applied Sciences

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In the present study, free vibration of functionally graded (FG) nanobeam is investigated. The variation of material properties is assumed in the thickness direction according to the power law. FG nanobeam is modeled as Euler-Bernoulli beam with different boundary conditions and investigated based on Eringen's nonlocal elasticity theory. Governing equations are derived via Hamilton principle. Frequency values are found by using finite element method. FG nanobeam is composed of silicon carbide (SiC) and stainless steel (SUS304). The effects of dimensionless small-scale parameters (e0a/L), power law exponent (k) and boundary conditions on frequencies are examined for FG nanobeam.

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Higher-order continuum theories for buckling response of silicon carbide nanowires (SiCNWs) on elastic matrix

Cited by 41 publications

References 70 publications

Comparison of small scale effect theories for buckling analysis of nanobeams

Comparison of small scale effect theories for buckling analysis of nanobeams

Finite Element Model and Size Dependent Stability Analysis of Boron Nitride and Silicon Carbide Nanowires/Nanotubes

Finite Element Model of Functionally Graded Nanobeam for Free Vibration Analysis

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