Micromechanical analysis of heterogeneous materials subjected to overall Cosserat strains

Abstract

In the framework of the computational homogenization procedures, the problem of coupling a Cosserat continuum at the macroscopic level and a Cauchy medium at the microscopic level, where a heterogeneous periodic material is considered, is addressed. In particular, non-homogeneous higher-order boundary conditions are defined on the basis of a kinematic map, properly formulated for taking into account all the Cosserat deformation components and for satisfying all the governing equations at the micro-level in the case of a homogenized elastic material. Furthermore, the distribution of the perturbation fields, arising when the actual heterogeneous nature of the material is taken into account, is investigated. Contrary to the case of the first-order homogenization where periodic fluctuations arise, in the analyzed problem more complex distributions emerge.


Autore Pugliese

Tutti gli autori

  • Addessi D. , De Bellis M. L. , Sacco E.

Titolo volume/Rivista

MECHANICS RESEARCH COMMUNICATIONS


Anno di pubblicazione

2013

ISSN

0093-6413

ISBN

Non Disponibile


Numero di citazioni Wos

16

Ultimo Aggiornamento Citazioni

25/04/2018


Numero di citazioni Scopus

18

Ultimo Aggiornamento Citazioni

24/04/2018


Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile