A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach
- Autores
- da Rosa Espath, Luis Felipe; Braun, A.L.; Awruch, A.M.; Dalcin, Lisandro Daniel
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A numerical model to deal with nonlinear elastodynamics involving large rotations within the framework of the finite element based on NURBS (Non-Uniform Rational B-Spline) basis is presented. A comprehensive kinematical description using a corotational approach and an orthogonal tensor given by the exact polar decomposition is adopted. The state equation is written in terms of corotational variables according to the hypoelastic theory, relating the Jaumann derivative of the Cauchy stress to the Eulerian strain rate.The generalized-α method (Gα) method and Generalized Energy-Momentum Method with an additional parameter (GEMM+ξ) are employed in order to obtain a stable and controllable dissipative time-stepping scheme with algorithmic conservative properties for nonlinear dynamic analyses.The main contribution is to show that the energy-momentum conservation properties and numerical stability may be improved once a NURBS-based FEM in the spatial discretization is used. Also it is shown that high continuity can postpone the numerical instability when GEMM+ξ with consistent mass is employed; likewise, increasing the continuity class yields a decrease in the numerical dissipation. A parametric study is carried out in order to show the stability and energy budget in terms of several properties such as continuity class, spectral radius and lumped as well as consistent mass matrices.
Fil: da Rosa Espath, Luis Felipe. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Braun, A.L.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Awruch, A.M.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Dalcin, Lisandro Daniel. King Abdullah University Of Science And Technology; . Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina - Materia
-
Isogeometric Analysis
Generalized-Αlpha Method
Generalized Energy?Momentum Method
Corotational Kinematics
Nurbs - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/38228
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A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approachda Rosa Espath, Luis FelipeBraun, A.L.Awruch, A.M.Dalcin, Lisandro DanielIsogeometric AnalysisGeneralized-Αlpha MethodGeneralized Energy?Momentum MethodCorotational KinematicsNurbsA numerical model to deal with nonlinear elastodynamics involving large rotations within the framework of the finite element based on NURBS (Non-Uniform Rational B-Spline) basis is presented. A comprehensive kinematical description using a corotational approach and an orthogonal tensor given by the exact polar decomposition is adopted. The state equation is written in terms of corotational variables according to the hypoelastic theory, relating the Jaumann derivative of the Cauchy stress to the Eulerian strain rate.The generalized-α method (Gα) method and Generalized Energy-Momentum Method with an additional parameter (GEMM+ξ) are employed in order to obtain a stable and controllable dissipative time-stepping scheme with algorithmic conservative properties for nonlinear dynamic analyses.The main contribution is to show that the energy-momentum conservation properties and numerical stability may be improved once a NURBS-based FEM in the spatial discretization is used. Also it is shown that high continuity can postpone the numerical instability when GEMM+ξ with consistent mass is employed; likewise, increasing the continuity class yields a decrease in the numerical dissipation. A parametric study is carried out in order to show the stability and energy budget in terms of several properties such as continuity class, spectral radius and lumped as well as consistent mass matrices.Fil: da Rosa Espath, Luis Felipe. Universidade Federal do Rio Grande do Sul; BrasilFil: Braun, A.L.. Universidade Federal do Rio Grande do Sul; BrasilFil: Awruch, A.M.. Universidade Federal do Rio Grande do Sul; BrasilFil: Dalcin, Lisandro Daniel. King Abdullah University Of Science And Technology; . Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; ArgentinaJohn Wiley & Sons Ltd2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38228da Rosa Espath, Luis Felipe ; Braun, A.L.; Awruch, A.M.; Dalcin, Lisandro Daniel; A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach; John Wiley & Sons Ltd; International Journal for Numerical Methods in Engineering; 102; 13; 6-2015; 1839-18680029-5981CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/nme.4870info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:13Zoai:ri.conicet.gov.ar:11336/38228instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:11:13.989CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
title |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
spellingShingle |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach da Rosa Espath, Luis Felipe Isogeometric Analysis Generalized-Αlpha Method Generalized Energy?Momentum Method Corotational Kinematics Nurbs |
title_short |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
title_full |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
title_fullStr |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
title_full_unstemmed |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
title_sort |
A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach |
dc.creator.none.fl_str_mv |
da Rosa Espath, Luis Felipe Braun, A.L. Awruch, A.M. Dalcin, Lisandro Daniel |
author |
da Rosa Espath, Luis Felipe |
author_facet |
da Rosa Espath, Luis Felipe Braun, A.L. Awruch, A.M. Dalcin, Lisandro Daniel |
author_role |
author |
author2 |
Braun, A.L. Awruch, A.M. Dalcin, Lisandro Daniel |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Isogeometric Analysis Generalized-Αlpha Method Generalized Energy?Momentum Method Corotational Kinematics Nurbs |
topic |
Isogeometric Analysis Generalized-Αlpha Method Generalized Energy?Momentum Method Corotational Kinematics Nurbs |
dc.description.none.fl_txt_mv |
A numerical model to deal with nonlinear elastodynamics involving large rotations within the framework of the finite element based on NURBS (Non-Uniform Rational B-Spline) basis is presented. A comprehensive kinematical description using a corotational approach and an orthogonal tensor given by the exact polar decomposition is adopted. The state equation is written in terms of corotational variables according to the hypoelastic theory, relating the Jaumann derivative of the Cauchy stress to the Eulerian strain rate.The generalized-α method (Gα) method and Generalized Energy-Momentum Method with an additional parameter (GEMM+ξ) are employed in order to obtain a stable and controllable dissipative time-stepping scheme with algorithmic conservative properties for nonlinear dynamic analyses.The main contribution is to show that the energy-momentum conservation properties and numerical stability may be improved once a NURBS-based FEM in the spatial discretization is used. Also it is shown that high continuity can postpone the numerical instability when GEMM+ξ with consistent mass is employed; likewise, increasing the continuity class yields a decrease in the numerical dissipation. A parametric study is carried out in order to show the stability and energy budget in terms of several properties such as continuity class, spectral radius and lumped as well as consistent mass matrices. Fil: da Rosa Espath, Luis Felipe. Universidade Federal do Rio Grande do Sul; Brasil Fil: Braun, A.L.. Universidade Federal do Rio Grande do Sul; Brasil Fil: Awruch, A.M.. Universidade Federal do Rio Grande do Sul; Brasil Fil: Dalcin, Lisandro Daniel. King Abdullah University Of Science And Technology; . Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina |
description |
A numerical model to deal with nonlinear elastodynamics involving large rotations within the framework of the finite element based on NURBS (Non-Uniform Rational B-Spline) basis is presented. A comprehensive kinematical description using a corotational approach and an orthogonal tensor given by the exact polar decomposition is adopted. The state equation is written in terms of corotational variables according to the hypoelastic theory, relating the Jaumann derivative of the Cauchy stress to the Eulerian strain rate.The generalized-α method (Gα) method and Generalized Energy-Momentum Method with an additional parameter (GEMM+ξ) are employed in order to obtain a stable and controllable dissipative time-stepping scheme with algorithmic conservative properties for nonlinear dynamic analyses.The main contribution is to show that the energy-momentum conservation properties and numerical stability may be improved once a NURBS-based FEM in the spatial discretization is used. Also it is shown that high continuity can postpone the numerical instability when GEMM+ξ with consistent mass is employed; likewise, increasing the continuity class yields a decrease in the numerical dissipation. A parametric study is carried out in order to show the stability and energy budget in terms of several properties such as continuity class, spectral radius and lumped as well as consistent mass matrices. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/38228 da Rosa Espath, Luis Felipe ; Braun, A.L.; Awruch, A.M.; Dalcin, Lisandro Daniel; A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach; John Wiley & Sons Ltd; International Journal for Numerical Methods in Engineering; 102; 13; 6-2015; 1839-1868 0029-5981 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/38228 |
identifier_str_mv |
da Rosa Espath, Luis Felipe ; Braun, A.L.; Awruch, A.M.; Dalcin, Lisandro Daniel; A NURBS-based finite element model applied to geometrically nonlinear elastodynamics using a corotational approach; John Wiley & Sons Ltd; International Journal for Numerical Methods in Engineering; 102; 13; 6-2015; 1839-1868 0029-5981 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1002/nme.4870 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
John Wiley & Sons Ltd |
publisher.none.fl_str_mv |
John Wiley & Sons Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614009432571904 |
score |
13.070432 |