The consistent coupling boundary condition for the classical micromorphic model: existence, uniqueness and interpretation of parameters

Autor: Marco Valerio d’Agostino, Gianluca Rizzi, Hassam Khan, Peter Lewintan, Angela Madeo, Patrizio Neff

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 at minimizing spurious influences from arbitrary boundary prescription

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed649ca13a892504fff874b60db5a946
http://arxiv.org/abs/2112.12050

Model reduction for the forming process of fibrous composites structures via second gradient enriched continuum models

Autor: Marco Valerio d'Agostino, Salim Belouettar, Ali Daouadji, Angela Madeo, Gaetano Giunta, Philippe Boisse, Gabriele Barbagallo, Ahmed Makradi, Alexios Aivaliotis

Publikováno v: Mechanics of Advanced Materials and Structures
Mechanics of Advanced Materials and Structures, Taylor & Francis, 2021, 28 (10), pp.1061-1072. ⟨10.1080/15376494.2019.1629050⟩

This paper describes phenomena associated to the microstructure, such as the local bending stiffness of the yarns, with a second gradient parameter associated to terms in the energy with higher ord...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::083e9a961d9d4e5472f435626a77eaf6
https://hal.archives-ouvertes.fr/hal-03350340

Transparent anisotropy for the relaxed micromorphic model: Macroscopic consistency conditions and long wave length asymptotics

Autor: Gabriele Barbagallo, Marco Valerio d'Agostino, Ionel-Dumitrel Ghiba, Rafael Abreu, Angela Madeo, Patrizio Neff

Publikováno v: International Journal of Solids and Structures
International Journal of Solids and Structures, Elsevier, 2017, 120, pp.7-30. ⟨10.1016/j.ijsolstr.2017.01.030⟩

International audience; In this paper, we study the anisotropy classes of the fourth order elastic tensors of the relaxed micro-morphic model, also introducing their second order counterpart by using a Voigt-type vector notation. In strong contrast w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0f049c7a790d9bdc614ced4c56bdc9c
https://doi.org/10.1016/j.ijsolstr.2017.01.030

Relaxed micromorphic model of transient wave propagation in anisotropic band-gap metastructures

Autor: Alexios Aivaliotis, Angela Madeo, Gabriele Barbagallo, Patrizio Neff, Domenico Tallarico, Marco Valerio d'Agostino

Publikováno v: International Journal of Solids and Structures
International Journal of Solids and Structures, Elsevier, 2019, 162, pp.148-163. ⟨10.1016/j.ijsolstr.2018.11.033⟩

International audience; 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 of the relaxed micromorphic type. Specifically

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16084401bb9de31e8874d200cd4d03d5

A review on wave propagation modeling in band-gap metamaterials via enriched continuum models

Autor: Marco Valerio d'Agostino, Angela Madeo, Ionel-Dumitrel Ghiba, Gabriele Barbagallo, Patrizio Neff

Publikováno v: Mathematical Modelling in Solid Mechanics. Advanced Structured Materials
Mathematical Modelling in Solid Mechanics. Advanced Structured Materials, 2017
Advanced Structured Materials ISBN: 9789811037634

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 metamaterials for which the kinetic energy accounts separately for micro and ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72b729b33e09eb1cb276ef7be8e8e76a
https://hal.science/hal-02076948