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dc.contributor.author | Cebrecos, Alejandro | es_ES |
dc.contributor.author | Krattiger, Dimitri | es_ES |
dc.contributor.author | Sánchez Morcillo, Víctor José | es_ES |
dc.contributor.author | Romero García, Vicente | es_ES |
dc.contributor.author | Hussein, Mahmoud Ismail | es_ES |
dc.date.accessioned | 2020-11-19T04:32:13Z | |
dc.date.available | 2020-11-19T04:32:13Z | |
dc.date.issued | 2019-05 | es_ES |
dc.identifier.issn | 0010-4655 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/155307 | |
dc.description.abstract | [EN] The finite-element time-domain method for elastic band-structure calculations is presented in this paper. The method is based on discretizing the appropriate equations of motion by finite elements, applying Bloch boundary conditions to reduce the analysis to a single unit cell, and conducting a simulation using a standard time-integration scheme. The unit cell is excited by a wide-band frequency signal designed to enable a large number of modes to be identified from the time-history response. By spanning the desired wave-vector space within the Brillouin zone, the band structure is then robustly generated. Bloch mode shapes are computed using the well-known concept of modal analysis, especially as implemented in an experimental setting. The performance of the method is analyzed in terms of accuracy, convergence, and computation time, and is compared to the finite-difference time-domain method as well as to a direct finite-element (FE) solution of the corresponding eigenvalue problem. The proposed method is advantageous over FD-based methods for unit cells with complex geometries, and over direct FE in situations where the formulation of an eigenvalue problem is not straightforward. For example, the new method makes it possible to accurately solve a time-dependent Bloch problem, such as the case of a complex unit cell model of a topological insulator where an internal fluid flow or other externally controlled physical fields are present. (C) 2018 Elsevier B.V. All rights reserved. | es_ES |
dc.description.sponsorship | A.C. is grateful for the support of Programa de Ayudas de Investigacion y Desarrollo (PAID) and Programa de Movilidad e Internacionalizacion Academica (PMIA-2013) of the UPV. This research was partially funded by the funded by the Ministerio de Economia e Innovacion (MINECO), Spain through project FIS2015-65998-C2-2-P, and partially funded by the National Science Foundation (NSF), USA through grant number 1538596. The authors acknowledge Dr. Noe Jimenez for fruitful discussions. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Computer Physics Communications | es_ES |
dc.rights | Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) | es_ES |
dc.subject | Band structure | es_ES |
dc.subject | Dispersion curves | es_ES |
dc.subject | Phononic crystals | es_ES |
dc.subject | Elastic metamaterials | es_ES |
dc.subject | Finite-element time-domain | es_ES |
dc.subject | Finite-difference time-domain | es_ES |
dc.subject.classification | FISICA APLICADA | es_ES |
dc.title | The finite-element time-domain method for elastic band-structure calculations | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.cpc.2018.12.016 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//PMIA-2013/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/NSF//1538596/US/Material with Tunable Constitution for Elastodynamic Deformation/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//FIS2015-65998-C2-2-P/ES/ONDAS ACUSTICAS EN CRISTALES, MEDIOS ESTRUCTURADOS Y METAMATERIALES/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario de Matemática Pura y Aplicada - Institut Universitari de Matemàtica Pura i Aplicada | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada | es_ES |
dc.description.bibliographicCitation | Cebrecos, A.; Krattiger, D.; Sánchez Morcillo, VJ.; Romero García, V.; Hussein, MI. (2019). The finite-element time-domain method for elastic band-structure calculations. Computer Physics Communications. 238:77-87. https://doi.org/10.1016/j.cpc.2018.12.016 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.cpc.2018.12.016 | es_ES |
dc.description.upvformatpinicio | 77 | es_ES |
dc.description.upvformatpfin | 87 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 238 | es_ES |
dc.relation.pasarela | S\400725 | es_ES |
dc.contributor.funder | National Science Foundation, EEUU | es_ES |
dc.contributor.funder | Universitat Politècnica de València | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |