A review of size-dependent continuum mechanics models for micro-and nano-structures

MA Roudbari, TD Jorshari, C Lü, R Ansari… - Thin-Walled …, 2022 - Elsevier
Recently, the mechanical behavior of micro-/nano-structures has sparked an ongoing
debate, which leads to a fundamental question: what steps can be taken to investigate the …

Dynamic problems for metamaterials: review of existing models and ideas for further research

D Del Vescovo, I Giorgio - International Journal of Engineering Science, 2014 - Elsevier
Metamaterials are materials especially engineered to have a peculiar physical behaviour, to
be exploited for some well-specified technological application. In this context we focus on …

At the origins and in the vanguard of peridynamics, non-local and higher-gradient continuum mechanics: an underestimated and still topical contribution of Gabrio …

F Dell'Isola, U Andreaus… - … and Mechanics of Solids, 2015 - journals.sagepub.com
Gabrio Piola's scientific papers have been underestimated in mathematical physics
literature. Indeed, a careful reading of them proves that they are original, deep and far …

Hencky-type discrete model for pantographic structures: numerical comparison with second gradient continuum models

E Turco, F Dell'Isola, A Cazzani, NL Rizzi - Zeitschrift für angewandte …, 2016 - Springer
Hencky (Über die angenäherte Lösung von Stabilitätsproblemen im Raum mittels der
elastischen Gelenkkette. Ph. D. thesis, Engelmann, 1921) proposed a discrete model for …

Homogenization à la Piola produces second gradient continuum models for linear pantographic lattices

Y Rahali, I Giorgio, JF Ganghoffer… - International Journal of …, 2015 - Elsevier
In the present work, we show that the linearized homogenized model for a pantographic
lattice must necessarily be a second gradient continuum, as defined in Germain (1973) …

A unifying perspective: the relaxed linear micromorphic continuum

P Neff, ID Ghiba, A Madeo, L Placidi, G Rosi - Continuum Mechanics and …, 2014 - Springer
We formulate a relaxed linear elastic micromorphic continuum model with symmetric Cauchy
force stresses and curvature contribution depending only on the micro-dislocation tensor …

Energy approach to brittle fracture in strain-gradient modelling

L Placidi, E Barchiesi - Proceedings of the Royal Society …, 2018 - royalsocietypublishing.org
In this paper, we exploit some results in the theory of irreversible phenomena to address the
study of quasi-static brittle fracture propagation in a two-dimensional isotropic continuum …

Designing a light fabric metamaterial being highly macroscopically tough under directional extension: first experimental evidence

F Dell'Isola, T Lekszycki, M Pawlikowski… - … Mathematik und Physik, 2015 - Springer
In this paper, we study a metamaterial constructed with an isotropic material organized
following a geometric structure which we call pantographic lattice. This relatively complex …

Wave propagation in relaxed micromorphic continua: modeling metamaterials with frequency band-gaps

A Madeo, P Neff, ID Ghiba, L Placidi, G Rosi - Continuum Mechanics and …, 2015 - Springer
In this paper, the relaxed micromorphic model proposed in Ghiba et al.(Math Mech Solids,
2013), Neff et al.(Contin Mech Thermodyn, 2013) has been used to study wave propagation …

Modeling the onset of shear boundary layers in fibrous composite reinforcements by second-gradient theory

M Ferretti, A Madeo, F Dell'Isola, P Boisse - Zeitschrift für angewandte …, 2014 - Springer
It has been known since the pioneering works by Piola, Cosserat, Mindlin, Toupin, Eringen,
Green, Rivlin and Germain that many micro-structural effects in mechanical systems can be …