Fixed grid finite element analysis for 3D structural problems

Vista sencilla de ítem
dc.citation.epage586spa
dc.citation.issue4spa
dc.citation.journalTitleInternational Journal of Computational Methodseng
dc.citation.journalTitleInternational Journal of Computational Methodsspa
dc.citation.spage569spa
dc.citation.volume2spa
dc.contributor.authorGarcía, Manuel J.
dc.contributor.authorHenao, Miguel A.
dc.contributor.authorRuíz, Óscar E.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería Mecánicaspa
dc.contributor.researchgroupLaboratorio CAD/CAM/CAEspa
dc.date.accessioned2016-11-18T22:27:28Z
dc.date.available2016-11-18T22:27:28Z
dc.date.issued2005
dc.description.abstractFixed Grid (FG) methodology was first introduced by García and Steven as an engine for numerical estimation of two-dimensional elasticity problems -- The advantages of using FG are simplicity and speed at a permissible level of accuracy -- Two dimensional FG has been proved effective in approximating the strain and stress field with low requirements of time and computational resources -- Moreover, FG has been used as the analytical kernel for different structural optimisation methods as Evolutionary Structural Optimisation, Genetic Algorithms (GA), and Evolutionary Strategies -- FG consists of dividing the bounding box of the topology of an object into a set of equally sized cubic elements -- Elements are assessed to be inside (I), outside (O) or neither inside nor outside (NIO) of the object -- Different material properties assigned to the inside and outside medium transform the problem into a multi-material elasticity problem -- As a result of the subdivision NIO elements have non-continuous properties -- They can be approximated in different ways which range from simple setting of NIO elements as O to complex noncontinuous domain integration -- If homogeneously averaged material properties are used to approximate the NIO element, the element stiffness matrix can be computed as a factor of a standard stiffness matrix thus reducing the computational cost of creating the global stiffness matrix. An additional advantage of FG is found when accomplishing re-analysis, since there is no need to recompute the whole stiffness matrix when the geometry changes -- This article presents CAD to FG conversion and the stiffness matrix computation based on non-continuous elements -- In addition inclusion/exclusion of O elements in the global stiffness matrix is studied -- Preliminary results shown that non-continuous NIO elements improve the accuracy of the results with considerable savings in time -- Numerical examples are presented to illustrate the possibilities of the methodeng
dc.formatapplication/pdfeng
dc.identifier.doi10.1142/S0219876205000582
dc.identifier.issn0219-8762
dc.identifier.urihttp://hdl.handle.net/10784/9692
dc.language.isoengeng
dc.publisherWorld Scientific Publishing Co.spa
dc.relation.ispartofInternational Journal of Computational Methods, Volume 2, Issue 4, pp. 569-586spa
dc.relation.urihttp://dx.doi.org/10.1142/S0219876205000582
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.localAcceso abiertospa
dc.subject.keywordTopologyspa
dc.subject.keywordFinite element methodspa
dc.subject.keywordStructural optimizationspa
dc.subject.keywordPoisson processesspa
dc.subject.keywordTopologyeng
dc.subject.keywordFinite element methodeng
dc.subject.keywordStructural optimizationeng
dc.subject.keywordPoisson processeseng
dc.subject.keywordTriangulación de Delaunay.keywor
dc.subject.keyword3D (Programas para computador).keywor
dc.subject.lembTOPOLOGÍAspa
dc.subject.lembMÉTODO DE ELEMENTOS FINITOSspa
dc.subject.lembOPTIMIZACIÓN ESTRUCTURALspa
dc.subject.lembPROCESOS DE POISSONspa
dc.titleFixed grid finite element analysis for 3D structural problemseng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.hasVersionacceptedVersioneng
dc.type.localArtículospa

Archivos

Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
Fixed_Grid_Finite_Element_Analysis_for_3D_Structural_Problems.pdf
Tamaño:
410.04 KB
Formato:
Adobe Portable Document Format
Descripción:
Versión incompleta
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
2.5 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar

Colecciones

Artículos