Thermal Buckling Behavior of Nanobeams Using an Efficient Higher-Order Nonlocal Beam Theory

Tounsi, Abdelouahed; Semmah, Abdelwahed; Bousahla, Abdelmoumen Anis

doi:10.1061/(asce)nm.2153-5477.0000057

Cited by 83 publications

(19 citation statements)

References 40 publications

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“…Carbon nanotubes (CNTs) have been demonstrated to exhibit great potential as nanofillers for polymer-based nanocomposites owing to their unique structure and excellent mechanical chemical, electronic and thermal properties (4). CNTs subjected to bending are especially prone to buckling because of their high aspect ratio; the bulking behaviour of the nanobeams may provide extra energy absorption to improve the fracture toughness (5,6). Extensive research has been performed on CNT-reinforced toughening of polymer composites (7)(8)(9)(10).…”

Section: Introductionmentioning

confidence: 99%

Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes

Zhang

Zhai

et al. 2015

E-Polymers

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This study reports the reinforcement and fracture toughening mechanism of pristine multi-walled carbon nanotubes (MWCNTs) on epoxy matrix. The tensile strength and fracture energy (G IC ) of the epoxy polymer increased simultaneously upon the addition of a small amount of MWCNTs. The fracture surfaces of single-edgenotch three-point bending test specimens were analysed by scanning electron microscopy, and the double-notch four-point bending technique was used to investigate the fracture process by transmission electron microscopy, respectively. MWCNT pull-out and subsequent plastic void growth were found; meanwhile, fracture of MWCNTs was observed along the crack propagation path. The theoretical model of shearing band initiated by the stress concentrations around the MWCNTs is the dominant toughening mechanism. While the crack bridging of MWCNTs and the plastic void growth of epoxy also have a toughening effect.

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Section: Introductionmentioning

confidence: 99%

Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes

Zhang

Zhai

et al. 2015

E-Polymers

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“…The governing equations of piezoelectric CNTRC beam were obtained based on the Euler-Bernoulli beam theory and von Kármán geometric nonlinearity. Tounsi et al [11] presented an efficient higher-order nonlocal beam theory for the thermal buckling of nanobeams. It was assumed that the shear components of in-plane displacements give rise to the parabolic variation of shear strain through the thickness in such a way that shear stress vanishes on the nanobeam surfaces.…”

Section: Introductionmentioning

confidence: 99%

Thermal buckling analysis of functionally graded rectangular nanoplates based on nonlocal third-order shear deformation theory

Nami

Janghorban

Damadam

2015

Aerospace Science and Technology

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“…Tounsi et al [14] studied the thermal buckling properties of double-walled carbon nanotubes (DWCNTs) using nonlocal Timoshenko beam model. Tounsi et al [15] investigated the thermal buckling behavior of nanobeams by using an efficient higher order nonlocal beam theory. Berrabah et al [16] proposed a unified nonlocal shear deformation theory to study bending, buckling, and free vibration of nanobeams.…”

Section: Introductionmentioning

confidence: 99%

On the Thermal Buckling Characteristics of Armchair Single-Walled Carbon Nanotube Embedded in an Elastic Medium Based on Nonlocal Continuum Elasticity

Bedia¹,

Benzair²,

Semmah³

et al. 2015

Braz J Phys

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In this paper, the thermal buckling characteristics of armchair single-walled carbon nanotube (SWCNT) embedded in a one-parameter elastic medium are investigated using a new nonlocal first-order shear deformation theory (NNFSDT). The present model is able to consider the smallscale effect as well as the transverse shear deformation effects of nanotubes. The equivalent Young's modulus and shear modulus for armchair SWCNT are obtained by employing the energy-equivalent model. A closed-form solution for nondimensional critical buckling temperature is obtained in this investigation. The results illustrated in this work can provide a significant guidance for the investigation and design of the novel generation of nanodevices that make use of the thermal buckling characteristics of embedded SWCNT.

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Thermal Buckling Behavior of Nanobeams Using an Efficient Higher-Order Nonlocal Beam Theory

Cited by 83 publications

References 40 publications

Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes

Investigation into the toughening mechanism of epoxy reinforced with multi-wall carbon nanotubes

Thermal buckling analysis of functionally graded rectangular nanoplates based on nonlocal third-order shear deformation theory

On the Thermal Buckling Characteristics of Armchair Single-Walled Carbon Nanotube Embedded in an Elastic Medium Based on Nonlocal Continuum Elasticity

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