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3D NURBS-enhanced finite element method (NEFEM)
dc.contributor.author | Sevilla Cárdenas, Rubén |
dc.contributor.author | Fernández Méndez, Sonia |
dc.contributor.author | Huerta, Antonio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III |
dc.date.accessioned | 2011-10-17T09:57:14Z |
dc.date.available | 2011-10-17T09:57:14Z |
dc.date.created | 2011-10-14 |
dc.date.issued | 2011-10-14 |
dc.identifier.citation | Sevilla, R.; Fernandez, S.; Huerta, A. 3D NURBS-enhanced finite element method (NEFEM). "International journal for numerical methods in engineering", 14 Octubre 2011, vol. 88, núm. 12, p. 103-125. |
dc.identifier.issn | 0029-5981 |
dc.identifier.uri | http://hdl.handle.net/2117/13523 |
dc.description.abstract | This paper presents the extension of the recently proposed NURBS-enhanced finite element method (NEFEM) to 3D domains. NEFEM is able to exactly represent the geometry of the computational domain by means of its CAD boundary representation with non-uniform rational B-splines (NURBS) surfaces. Specific strategies for interpolation and numerical integration are presented for those elements affected by the NURBS boundary representation. For elements not intersecting the boundary, a standard finite element rationale is used, preserving the efficiency of the classical FEM. In 3D NEFEM special attention must be paid to geometric issues that are easily treated in the 2D implementation. Several numerical examples show the performance and benefits of NEFEM compared with standard isoparametric or cartesian finite elements. NEFEM is a powerful strategy to efficiently treat curved boundaries and it avoids excessive mesh refinement to capture small geometric features. |
dc.format.extent | 23 p. |
dc.language.iso | eng |
dc.publisher | Wiley and Sons |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències |
dc.subject.lcsh | NURBS |
dc.subject.lcsh | Non-uniform rational B-splines |
dc.subject.lcsh | Accurate geometry representation |
dc.subject.lcsh | Discontinuous Galerkin |
dc.subject.lcsh | High-order isoparametric approximations |
dc.subject.other | ccurate geometry representation |
dc.subject.other | CAD |
dc.subject.other | Discontinuous Galerkin |
dc.subject.other | Finite elements |
dc.subject.other | High-order isoparametric approximations |
dc.subject.other | NURBS |
dc.title | 3D NURBS-enhanced finite element method (NEFEM) |
dc.type | Article |
dc.contributor.group | Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria |
dc.identifier.doi | 10.1002/nme.3164 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 6013208 |
dc.description.version | Postprint (published version) |
local.citation.author | Sevilla, R.; Fernandez, S.; Huerta, A. |
local.citation.publicationName | International journal for numerical methods in engineering |
local.citation.volume | 88 |
local.citation.number | 12 |
local.citation.startingPage | 103 |
local.citation.endingPage | 125 |
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