Torsional Vibration Analysis of Carbon Nanotubes Using Maxwell and Kelvin-Voigt Type Viscoelastic Material Models

This review presents fundamental knowledge and recent advances pertaining to research on the role of rheology in polymer processing, highlights the knowledge gap between the function of rheology in various processing operations and the importance of rheology in the development, characterization, and assessment of the morphologies of polymeric materials, and offers ideas for enhancing the processabilities of polymeric materials in advanced processing operations. Rheology plays a crucial role in the morphological evolution of polymer blends and composites, influencing the type of morphology in the case of blends and the quality of dispersion in the cases of both blends and composites. The rheological characteristics of multiphase polymeric materials provide valuable information on the morphologies of these materials, thereby rendering rheology an important tool for morphological assessment. Although rheology extensively affects the processabilities of polymeric materials in all processing operations, this review focuses on the roles of rheology in film blowing, electrospinning, centrifugal jet spinning, and the three-dimensional printing of polymeric materials, which are advanced processing operations that have gained significant research interest. This review offers a comprehensive overview of the fundamentals of morphology development and the aforementioned processing techniques; moreover, it covers all vital aspects related to the tailoring of the rheological characteristics of polymeric materials for achieving superior morphologies and high processabilities of these materials in advanced processing operations. Thus, this article provides a direction for future advancements in polymer processing. Furthermore, the superiority of elongational flow over shear flow in enhancing the quality of dispersion in multiphase polymeric materials and the role of extensional rheology in the advanced processing operations of these materials, which have rarely been discussed in previous reviews, have been critically analyzed in this review. In summary, this article offers new insights into the use of rheology in material and product development during advanced polymer-processing operations.

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Section: Fundamentals Of Polymer Melt Rheologymentioning

confidence: 99%

Role of Rheology in Morphology Development and Advanced Processing of Thermoplastic Polymer Materials: A Review

Banerjee

Ray

2023

ACS Omega

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“…Also, finite element [27,28] and DSC method [29][30][31][32][33][34] methods were also used to perform analyzes. Furthermore, modal and bending analyzes of nano sized structures has been investigated using classical and size effective theories [35][36][37][38][39][40][41][42][43].Theoretical works are promising in case of the ability to perform hundreds of analyzes in very short time without the need of a laboratory and specimen [44][45][46][47][48][49][50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Accurate Small Sized Load Bearing Components Displacement Analysis

Mercan

2023

International Journal of Engineering and Applied Sciences

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Load bearing components with cross sections in scale of millimeters attracted popularity with the advance in material engineering. As standard size scale of load bearing structures are around 100 times bigger than millimeter sized components, classical stability analyzes may be insufficient to simulate all stress and strains in load bearing structures which may lead to fail in whole structure. In this paper, the displacement analysis of small cross-sectional load bearing metals is presented using finite element analyzes and higher order elasticity theory. To take the size effect into consideration surface elasticity theory is selected. It is obtained higher order analyzes results differs from F.E.A. results. This result reveals that classical methods are insufficient to give accurate success in millimeters scale.

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“…Small number of works can be seen in literature about torsional analysis of viscoelastic CNTs. Arda has studied the various viscoelastic models [23] and viscoelastic effects on torsional analysis of CNTs [24,25]. El-Borgi et al [26] used the strain and velocity gradient model for the torsional analysis of viscoelastic CNT.…”

Section: Introductionmentioning

confidence: 99%

Torsional Dynamics of Axially Graded Viscoelastic Carbon Nanotubes

Arda,

Aydogdu

2023

MSF

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Torsional vibration analysis of the axially functionally graded carbon nanotubes has been carried out. Nonlocal stress gradient elasticity theory has been used in continuum mechanics model of the carbon nanotube. Variation of the material properties of the axially graded nanostructure has been assumed in exponential form. Differently from the majority of literature works, viscous damping and nonlocal parameters have been assumed in grading form. Energy functional for the carbon nanotube has been achieved with minimum potential energy principle and weak form solution has been obtained with the Ritz Method. Effects of material grading, nonlocality and viscoelasticity to the torsional dynamics of axially graded carbon nanotube have been investigated. Results of the present work could be useful in modeling and production of axially functionally graded nanostructures.

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Torsional Vibration Analysis of Carbon Nanotubes Using Maxwell and Kelvin-Voigt Type Viscoelastic Material Models

Cited by 6 publications

References 33 publications

Role of Rheology in Morphology Development and Advanced Processing of Thermoplastic Polymer Materials: A Review

Role of Rheology in Morphology Development and Advanced Processing of Thermoplastic Polymer Materials: A Review

Accurate Small Sized Load Bearing Components Displacement Analysis

Torsional Dynamics of Axially Graded Viscoelastic Carbon Nanotubes

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