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Computable bounds of functional outputs in linear visco-elastodynamics
dc.contributor.author | Verdugo Rojano, Francesc |
dc.contributor.author | Díez, Pedro |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III |
dc.date.accessioned | 2012-11-29T12:18:31Z |
dc.date.available | 2012-11-29T12:18:31Z |
dc.date.created | 2012 |
dc.date.issued | 2012 |
dc.identifier.citation | Verdugo, F.; Diez, P. Computable bounds of functional outputs in linear visco-elastodynamics. "Computer methods in applied mechanics and engineering", 2012, vol. 245-246, p. 313-330. |
dc.identifier.issn | 0045-7825 |
dc.identifier.uri | http://hdl.handle.net/2117/17048 |
dc.description.abstract | This work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the previous ones using the Cauchy-Schwarz inequality. The proposed formulation utilizes symmetrized forms of the error equations to derive error bounds in terms of energy error measures. The practical implementation of the method is based on constructing admissible elds for both the original problem and the adjoint problem associated with the quantity of interest. Here, the ux-free technique is considered to compute the admissible stress elds. The proposed methodology yields estimates with better quality than the ones based on the Cauchy-Schwarz inequality. In the studied examples the bound gaps obtained are approximately halved, that is the estimated intervals of con dence are reduced. |
dc.format.extent | 18 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física::Física de l'estat sòlid |
dc.subject.lcsh | Strength of materials |
dc.subject.lcsh | Elastic solids |
dc.title | Computable bounds of functional outputs in linear visco-elastodynamics |
dc.type | Article |
dc.subject.lemac | Resistència de materials |
dc.subject.lemac | Elasticitat |
dc.contributor.group | Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria |
dc.identifier.doi | 10.1016/j.cma.2012.06.016 |
dc.description.peerreviewed | Peer Reviewed |
dc.subject.ams | 74B Elastic materials |
dc.relation.publisherversion | http://cataleg.upc.edu/record=b1237450~S1*cat |
dc.rights.access | Open Access |
local.identifier.drac | 11055338 |
dc.description.version | Postprint (published version) |
local.citation.author | Verdugo, F.; Diez, P. |
local.citation.publicationName | Computer methods in applied mechanics and engineering |
local.citation.volume | 245-246 |
local.citation.startingPage | 313 |
local.citation.endingPage | 330 |
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