Advanced materials modelling via fractional calculus: challenges and perspectives

G Failla, M Zingales - Philosophical Transactions of the …, 2020 - royalsocietypublishing.org
Fractional calculus is now a well-established tool in engineering science, with very
promising applications in materials modelling. Indeed, several studies have shown that …

Application of fractional order operators to the simulation of ducts with acoustic black hole terminations

JP Hollkamp, F Semperlotti - Journal of Sound and Vibration, 2020 - Elsevier
We investigate the potential of fractional order operators to develop accurate and efficient
models for acoustic black hole (ABH) terminations in ducts. While previous research has …

Review of nonlocal-in-time damping models in the dynamics of structures

V Sidorov, M Shitikova, E Badina, E Detina - Axioms, 2023 - mdpi.com
In the present paper, the nonlocal-in-time damping models, called “damping-with-memory”
models, are reviewed. Since such models do not involve the distribution along the …

Finite element method for stress-driven nonlocal beams

FP Pinnola, MS Vaccaro, R Barretta… - Engineering Analysis with …, 2022 - Elsevier
The bending behaviour of systems of straight elastic beams at different scales is investigated
by the well-posed stress-driven nonlocal continuum mechanics. An effective computational …

Towards a unified approach to nonlocal elasticity via fractional-order mechanics

S Patnaik, S Sidhardh, F Semperlotti - International Journal of Mechanical …, 2021 - Elsevier
This study presents a fractional-order continuum mechanics approach that allows combining
selected characteristics of nonlocal elasticity, typical of classical integral and gradient …

On the dynamics of nano-frames

AF Russillo, G Failla, G Alotta, FM de Sciarra… - International Journal of …, 2021 - Elsevier
Size-dependent dynamic responses of small-size frames are modelled by stress-driven
nonlocal elasticity and assessed by a consistent finite-element methodology. Starting from …

A Ritz-based finite element method for a fractional-order boundary value problem of nonlocal elasticity

S Patnaik, S Sidhardh, F Semperlotti - International Journal of Solids and …, 2020 - Elsevier
We present the analytical formulation and the finite element solution of a fractional-order
nonlocal continuum model of a Euler-Bernoulli beam. Employing consistent definitions for …

Variable-order approach to nonlocal elasticity: Theoretical formulation, order identification via deep learning, and applications

S Patnaik, M Jokar, F Semperlotti - Computational Mechanics, 2022 - Springer
This study presents the formulation of the variable-order continuum mechanics theory and its
application to the analysis of nonlocal heterogeneous solids. The variable-order continuum …

Random vibrations of stress-driven nonlocal beams with external damping

FP Pinnola, MS Vaccaro, R Barretta… - Meccanica, 2021 - Springer
Stochastic flexural vibrations of small-scale Bernoulli–Euler beams with external damping
are investigated by stress-driven nonlocal mechanics. Damping effects are simulated …

A novel approach to nonlinear variable-order fractional viscoelasticity

M Di Paola, G Alotta, A Burlon… - … Transactions of the …, 2020 - royalsocietypublishing.org
This paper addresses nonlinear viscoelastic behaviour of fractional systems with variable
time-dependent fractional order. In this case, the main challenge is that the Boltzmann linear …