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Width Dependent Elastic Properties of Graphene Nanoribbons

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Width Dependent Elastic Properties of Graphene Nanoribbons
Λαθιωτάκης, Νεκτάριος N.
Kalosakas, George
Papagelis, Konstantinos
Άρθρο σε επιστημονικό περιοδικό
2021-09-03
The mechanical response of graphene nanoribbons under uniaxial tension, as well as its dependence on the nanoribbon width, is presented by means of numerical simulations. Both armchair and zigzag edged graphene nanoribbons are considered. We discuss results obtained through two different theoretical approaches, viz. density functional methods and molecular dynamics atomistic simulations using empirical force fields especially designed to describe interactions within graphene sheets. Apart from the stress-strain curves, we calculate several elastic parameters, such as the Young's modulus, the third-order elastic modulus, the intrinsic strength, the fracture strain, and the Poisson's ratio versus strain, presenting their variation with the width of the nanoribbon.
Φυσική και θεωρητική χημεία (EL)
Χημική τεχνολογία (EL)
Νανοτεχνολογία (EL)
Chemical technolgy (EN)
Physical and theoretical chemistry (EN)
Nanotechnology (EN)
Unixial tension (EN)
Numerical simulations (EN)
2D materials (EN)
Mechanical response (EN)
English
MDPI
Materials (Basel, Switzerland)
https://creativecommons.org/licenses/by/4.0/deed.el
© 2021 by the authors. Licensee MDPI, Basel, Switzerland
National Hellenic Research Foundation (NHRF)
Helios - Repository of the National Hellenic Research Foundation (NHRF)



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