relation: http://eprints.imtlucca.it/2544/
title: Effective elastic properties of planar SOFCs: a non-local dynamic homogenization approach
creator: Bacigalupo, Andrea
creator: Morini, Lorenzo
creator: Piccolroaz, Amdrea
subject: TJ Mechanical engineering and machinery
description: Abstract The focus of the article is on the analysis of effective elastic properties of planar Solid Oxide Fuel Cell (SOFC) devices. An ideal periodic multi-layered composite (SOFC-like) reproducing the overall properties of multi-layer {SOFC} devices is defined. Adopting a non-local dynamic homogenization method, explicit expressions for overall elastic moduli and inertial terms of this material are derived in terms of micro-fluctuation functions. These micro-fluctuation functions are then obtained solving the cell problems by means of finite element techniques. The effects of the temperature variation on overall elastic and inertial properties of the fuel cells are studied. Dispersion relations for acoustic waves in SOFC-like multilayered materials are derived as functions of the overall constants, and the results obtained by the proposed computational homogenization approach are compared with those provided by rigorous Floquet–Bloch theory. Finally, the influence of the temperature and of the elastic properties variation on the Bloch spectrum is investigated.
publisher: Elsevier
date: 2014-09
type: Article
type: PeerReviewed
format: application/pdf
language: en
rights: cc_by_nc
identifier: http://eprints.imtlucca.it/2544/1/1404.7229.pdf
identifier:   Bacigalupo, Andrea and Morini, Lorenzo and Piccolroaz, Amdrea  Effective elastic properties of planar SOFCs: a non-local dynamic homogenization approach.  International Journal of Hydrogen Energy, 39 (27).  15017 - 15030.  ISSN 0360-3199      (2014)  
relation: http://www.sciencedirect.com/science/article/pii/S0360319914017832
relation: 10.1016/j.ijhydene.2014.06.104