Carbon Nanotube Structure Vibration Based on Non-local Elasticity

Belhadj, Abdelkadir; Boukhalfa, Abdelkrim; Belalia, Sid Ahmed

doi:10.21467/jmm.3.1.9-13

Cited by 12 publications

(15 citation statements)

References 15 publications

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“…Carbon nanotubes (CNTs) [3] are nanoscale structures made of pure carbon that are long and thin and shaped like tubes, these molecules are same sized and structured in chemical boding and aligned by Van der Walls forces into ropes, the length of CNTs can reach some millimeters while its diameter in on the order of some nanometers. In reference to the number of structured walls, we can distinguish single walled nanotubes (SWCNTs) shown in Figure.2, and multi-walled nanotubes (MWNTs) depending upon the walls number.…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Recent Advances of Mechanical Engineering Applications in Medicine & Biology

Belhadj

Boudjemaa

2017

mèd technologies J.

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Background: Mechanics is an area of science dealing with the behavior of physical bodies (solids and fluids) undergoing action of forces, it comprised of statics, kinetics, and kinematics. The advances and research in Applied Mechanics has wide application in almost fields of study including medicine and biology. In this paper, the relationship between mechanical engineering and medicine and biological sciences is investigated based on its application in these two sacred fields. Some emergent mechanical techniques applied in medical sciences and practices are presented. Methods: Emerging applications of mechanical engineering in medical and biological sciences are presented and investigated including: biomechanics, nanomechanics and computational fluid dynamics (CFD). Results: This review article presents some recent advances of mechanical engineering applications in medicine and biology. Specifically, this work focuses on three major subjects of interests: Biomechanics that is increasingly being recognized as an important application of mechanical fundamentals in biomedical and biological sciences and practices, biomechanics can play a crucial role in both injury prevention as well as performance enhancement of living systems.  Novel techniques of nanomechanics including: Carbon nanotubes applications in therapy, DNA recognition, immunology, and antiviral resistance. Nanorobotics that combines between nanotechnology, mechanics and new biomaterials to design and develop nanorobots based bacteria and biochips; these nanoscale robots can be involved in biomedical applications, particularly for the treatment of cancer, cerebral aneurysm treatment, kidney stones removal surgery, treatment of pathology, elimination of defected parts in the DNA structure, and some other treatments to save human lives.  Computational fluid dynamics (CFD) tools that contribute on the understanding of blood flows, human organs dynamics and surgical options simulation. Conclusion: Recent advances of mechanical applications in medicine and biology are carried out in this review, such as biomechanics, nanomechanics and computational fluid dynamics (CFD). As perspectives, mechanical scholars and engineers can involve these cited applications in their researches to solve many problems and issues that doctors and biologists cannot.

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Section: Carbon Nanotubesmentioning

confidence: 99%

Recent Advances of Mechanical Engineering Applications in Medicine & Biology

Belhadj

Boudjemaa

2017

mèd technologies J.

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“…and Zamanian et al [22]. In some further studies, Abdel-Rahman and Nayfeh [23], Hawwa and Al-Qahtani [24], Hajnayeb and Khaden [25] and Belhadj et al [26] presented different works on the vibration and instability of DWCNTs under the influence of electrostatic actuations. In the later work, a DWCNT was situated and conditioned to a direct and alternating voltage and different behaviours of the nanotubes were recorded as the exciting agent was varied.…”

Section: Introductionmentioning

confidence: 99%

“…It was concluded that both walls have the same frequency of vibration under the two resonant conditions considered. In another work, Belhadj et al [26] examined the vibration behaviour of a simply supported SWCNT employing the nonlocal theory of elasticity. The authors obtained the natural frequency up to third mode while they also established high level of frequency.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Dynamic Behaviour of a Tensioned Carbon Nanotube in Thermal and Pressurized Environments

Yinusa¹,

Sobamowo²

2019

Karbala International Journal of Modern Science

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In this paper, the dynamic behaviour of a tensioned single-walled carbon nanotubes (SWCNT) in thermal and pressurized environments is investigated analytically. With the applications of Bernoulli-Euler and thermal elasticity mechanics theories, the governing equation of motion are developed and solved using Laplace and Fourier transforms. The results of the close form solution in this work are in excellent agreements with past results in literature. From the parametric studies, it is established that as the magnitude of the pressure distribution at the surface increases, the deflection associated with the nanotube increases at any mode of vibration. However, a corresponding increase in the temperature and foundation parameter have an attenuating attribute on deflection. Also, it is shown that the frequency of the vibration increases as the Winkler parameter increases and the mass of the SWCNT decreases. It is envisaged that this work will enhance the use of SWCNT in structural, electrical and mechanical applications.

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“…In an earlier work, Zamanian et al [22] presented the non-linear vibrations analysis of a microresonator subjected to piezoelectric and electrostatic actuations. As a continuation of the tremendous work, Abdel-Rahman, Hawwa, Hajnayeb, and Belhadj [23][24][25][26] performed a vibration and instability studies of DWCNT using a nonlinear model and considering an electrostatic actuation as an external excitation agent. In their work, a DWCNT was situated and conditioned to a direct and alternating voltage and different behaviors of the nanotubes were recorded as the exciting agent is varied.…”

Section: Introductionmentioning

confidence: 99%

“…They went further to determine the bifurcation point of the DWCNT and concluded that both walls have the same frequency of vibration under the two resonant conditions considered. Belhadj et al [26] carried out the vibration analysis of a pinned-pinned supported SWCNT employing nonlocal theory of elasticity and obtained natural frequency up to third mode. The authors also put forward an explanation on the advantages of the high frequency obtained in their work to optical applications.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibrations of single- and double-walled carbon nanotubes resting on two-parameter foundation in a magneto-thermal environment

et al. 2019

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The excellent mechanical, electrical, structural and thermal properties coupled with high strength to weight ratio of carbon nanotubes have tremendously expanded their applications in various industrial, engineering, physical and natural sciences processes. In this work, nonlocal elasticity theory is used to analyze nonlinear vibrations of single and doublewalled carbon nanotubes resting on two-parameter foundation in a thermal and magnetic environment. With the aid of Galerkin decomposition method, the systems of nonlinear partial differential equations are transformed into systems of nonlinear ordinary differential equations which are solved using homotopy perturbation method. The developed analytical solutions are used to investigate the influences of elastic foundations, magnetic field, temperature rise, interlayer forces, small scale parameter and boundary conditions on the frequency ratio. From the results, it is observed that the frequency ratio for all boundary conditions decreases as the number of walls increases from single to double. Also, it is established that the frequency ratio is highest for clamped-simple supported and lowest for clamped-clamped supported. Additionally, the results revealed that the frequency ratio decreases with increase in the value of spring constant (k 1) temperature and magnetic field strength. This work will enhance the applications of carbon nanotubes in structural, electrical, mechanical and biological applications especially in a thermal and magnetic environment.

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Carbon Nanotube Structure Vibration Based on Non-local Elasticity

Cited by 12 publications

References 15 publications

Recent Advances of Mechanical Engineering Applications in Medicine & Biology

Recent Advances of Mechanical Engineering Applications in Medicine & Biology

Analysis of Dynamic Behaviour of a Tensioned Carbon Nanotube in Thermal and Pressurized Environments

Nonlinear vibrations of single- and double-walled carbon nanotubes resting on two-parameter foundation in a magneto-thermal environment

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