Browsing by Author "Fantuzzi, Nicholas"

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    Citation - WoS: 23
    Citation - Scopus: 21
    Bending characteristics of carbon nanotubes: Micropolar elasticity models and molecular dynamics simulations
    (TAYLOR & FRANCIS INC, 2021) Razie Izadi; Meral Tuna; Patrizia Trovalusci; Nicholas Fantuzzi; Fantuzzi, Nicholas; Trovalusci, Patrizia; Izadi, Razie; Tuna, Meral
    The present paper aims at evaluating non-classical continuum parameters for each class of armchair and zigzag single-walled CNTs focusing on the scale effect in their flexural behavior observed in molecular dynamics (MD) simulations. Through a non-linear optimization approach the bending rigidities obtained from atomistic simulations are compared to those derived from non-classical continua. For MD simulations a novel method ensuring pure bending is introduced and for continuum modeling micropolar constrained micropolar and modified couple stress theories are employed. The results reveal that adopted non-classical theories notably micropolar theory provide reasonable outcomes with an obvious failure of classical Cauchy theory.