59 citations · 227 across the 17 of their papers we have counts for
20 papers
Hypo-elasticity, Cauchy-elasticity, corotational stability and monotonicity in the logarithmic strain
Patrizio Neff, Sebastian Holthausen, Marco Valerio d'Agostino +4
We combine the rate-formulation for the objective, corotational Zaremba-Jaumann rate \begin{align} \frac{{\rm D}^{\rm ZJ}}{{\rm D} t} [σ] = \mathbb{H}^{\rm ZJ}(σ).D, \qquad D = {\r…
A constitutive condition for idealized isotropic Cauchy elasticity involving the logarithmic strain
Marco Valerio d'Agostino, Sebastian Holthausen, Davide Bernardini +4
Following Hill and Leblond, the aim of our work is to show, for isotropic nonlinear elasticity, a relation between the corotational Zaremba-Jaumann objective derivative of the Cauc…
On the representation of fourth and higher order anisotropic elasticity tensors in generalized continuum models
Marco Valerio d'Agostino, Robert J. Martin, Peter Lewintan +3
The classification of all fourth-order anisotropic tensor classes for classical linear elasticity is well known. In this article, we review the related problem of explicitly comput…
From frequency-dependent models to frequency-independent enriched continua for mechanical metamaterials
Gianluca Rizzi, Marco Valerio d'Agostino, Jendrik Voss +3
Mechanical metamaterials have recently gathered increasing attention for their uncommon mechanical responses enabling unprecedented applications for elastic wave control. To model…
The consistent coupling boundary condition for the classical micromorphic model: existence, uniqueness and interpretation of parameters
Marco Valerio d'Agostino, Gianluca Rizzi, Hassam Khan +3
We consider the classical Mindlin-Eringen linear micromorphic model with a new strictly weaker set of displacement boundary conditions. The new consistent coupling condition aims a…
Boundary and interface conditions in the relaxed micromorphic model: exploring finite-size metastructures for elastic wave control
Gianluca Rizzi, Marco Valerio d'Agostino, Patrizio Neff +1
In this paper, we establish well-posed boundary and interface conditions for the relaxed micromorphic model that are able to unveil the scattering response of fully finite-size met…
Identification of scale-independent material parameters in the relaxed micromorphic model through model-adapted first order homogenization
Patrizio Neff, Bernhard Eidel, Marco Valerio d'Agostino +1
We rigorously determine the scale-independent short range elastic parameters in the relaxed micromorphic generalized continuum model for a given periodic microstructure. This is do…
Relaxed micromorphic broadband scattering for finite-size meta-structures -- a detailed development
Alexios Aivaliotis, Domenico Tallarico, Marco-Valerio D'Agostino +3
The conception of new metamaterials showing unorthodox behaviors with respect to elastic wavepropagation has become possible in recent years thanks to powerful dynamical homogeniza…
Relaxed micromorphic model of transient wave propagation in anisotropic band-gap metastructures
Gabriele Barbagallo, Domenico Tallarico, Marco Valerio D'Agostino +3
In this paper, we show that the transient waveforms arising from several localised pulses in a micro-structured material can be reproduced by a corresponding generalised continuum…
Nonstandard micro-inertia terms in the relaxed micromorphic model: well-posedness for dynamics
Sebastian Owczarek, Ionel-Dumitrel Ghiba, Marco-Valerio d'Agostino +1
We study the existence of solutions arising from the modelling of elastic materials using generalized theories of continua. In view of some evidence from physics of meta-materials…
Effective description of anisotropic wave dispersion in mechanical band-gap metamaterials via the relaxed micromorphic model
Marco Valerio d'Agostino, Gabriele Barbagallo, Ionel-Dumitrel Ghiba +3
In this paper the relaxed micromorphic material model for anisotropic elasticity is used to describe the dynamical behavior of a band-gap metamaterial with tetragonal symmetry. Unl…
Relaxed micromorphic modeling of the interface between a homogeneous solid and a band-gap metamaterial: new perspectives towards meta-structural design
Angela Madeo, Gabriele Barbagallo, Manuel Collet +3
In the present paper, the material parameters of the isotropic relaxed micromorphic model derived for a specific metamaterial in a previous contribution are used to model its trans…
A panorama of dispersion curves for the weighted isotropic relaxed micromorphic model
Marco Valerio d'Agostino, Gabriele Barbagallo, Ionel-Dumitrel Ghiba +2
We consider the weighted isotropic relaxed micromorphic model and provide an in depth investigation of the characteristic dispersion curves when the constitutive parameters of the…
A review on wave propagation modeling in band-gap metamaterials via enriched continuum models
Angela Madeo, Patrizio Neff, Gabriele Barbagallo +2
In the present contribution we show that the relaxed micromorphic model is the only non-local continuum model which is able to account for the description of band-gaps in metamater…
On the role of micro-inertia in enriched continuum mechanics
Angela Madeo, Patrizio Neff, Elias C. Aifantis +2
In this paper the role of gradient micro-inertia terms and free micro-inertia terms is investigated to unveil their…
Real wave propagation in the isotropic relaxed micromorphic model
Patrizio Neff, Angela Madeo, Gabriele Barbagallo +3
For the recently introduced isotropic relaxed micromorphic generalized continuum model, we show that under the assumption of positive definite energy, planar harmonic waves have re…
First evidence of non-locality in real band-gap metamaterials: determining parameters in the relaxed micromorphic model
Angela Madeo, Gabriele Barbagallo, Marco Valerio d'Agostino +2
In this paper we propose the first estimate of some elastic parameters of the relaxed micromorphic model on the basis of real experiments of transmission of longitudinal plane wave…
Complete band gaps including non-local effects occur only in the relaxed micromorphic model
Angela Madeo, Patrizio Neff, Marco Valerio d'Agostino +1
In this paper we substantiate the claim implicitly made in previous works that the relaxed micromorphic model is the only linear, isotropic, reversibly elastic, nonlocal generalize…
Transparent anisotropy for the relaxed micromorphic model: macroscopic consistency conditions and long wave length asymptotics
Gabriele Barbagallo, Angela Madeo, Marco Valerio d'Agostino +3
In this paper, we study the anisotropy classes of the fourth order elastic tensors of the relaxed micromorphic model, also introducing their second order counterpart by using a Voi…
Continuum and discrete models for unbalanced woven fabrics
Angela Madeo, Gabriele Barbagallo, Marco Valerio D'Agostino +1
The classical models used for describing the behavior of woven fabrics do not fully account for the whole set of phenomena that occur during the testing of such materials. This lac…