Influence of material model and modeling space on the precision of a finite element simulation to predict the deformation of silicone rubber
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2011
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| _version_ | 1876457780180680704 |
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| author | Elizabeth Mesa-Múnera |
| author_facet | Elizabeth Mesa-Múnera |
| contents | Influence of material model and modeling space on the precision of a finite element simulation to predict the deformation of silicone rubber Elizabeth Mesa-Múnera Juan F. Ramírez-Salazar Walter F. Bischof Pierre Boulanger John W. Branch Computación brain indentation Finite Element Method Design of Experiments Soft tissue characterization The realistic simulation of tool-tissue interactions is required for the development of surgical simulators. In this paper, we estimate the material properties of a silicone rubber with mechanical properties similar to brain tissue, by performinga standard compression test. Using the estimated parameters, we performed different finite element simulations of needle indentation into a block of the same tissue. We investigated the effect of material model (Neo-Hookean and Second Order Reduced Polynomial) and modeling space (3D and axisymmetric geometries) on the accuracy of the simulation. We demonstrated that material model, space and their interaction have a significant effect on the accuracy of the simulations. The most accurate combination corresponds to a 3D simulation using a Reduced Polynomial model. However, even for not-axisymmetric geometries, one can sacrifice some accuracy and use a simpler and faster modeling space (i.e. axisymmetric), at least for the simulations considered here, given a change in the modeling space has a smaller effect on accuracy than a change in the material model. 2011 artículo científico 1657-7663 https://www.redalyc.org/articulo.oa?id=133122679008 en http://www.redalyc.org/revista.oa?id=1331 Revista Avances en Sistemas e Informática application/pdf Universidad Nacional de Colombia Revista Avances en Sistemas e Informática (Colombia) Num.3 Vol.8 |
| format | Artículo científico |
| id | redalyc_133122679008 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Influence of material model and modeling space on the precision of a finite element simulation to predict the deformation of silicone rubber Elizabeth Mesa-Múnera Computación brain indentation Finite Element Method Design of Experiments Soft tissue characterization Influence of material model and modeling space on the precision of a finite element simulation to predict the deformation of silicone rubber Elizabeth Mesa-Múnera Juan F. Ramírez-Salazar Walter F. Bischof Pierre Boulanger John W. Branch Computación brain indentation Finite Element Method Design of Experiments Soft tissue characterization The realistic simulation of tool-tissue interactions is required for the development of surgical simulators. In this paper, we estimate the material properties of a silicone rubber with mechanical properties similar to brain tissue, by performinga standard compression test. Using the estimated parameters, we performed different finite element simulations of needle indentation into a block of the same tissue. We investigated the effect of material model (Neo-Hookean and Second Order Reduced Polynomial) and modeling space (3D and axisymmetric geometries) on the accuracy of the simulation. We demonstrated that material model, space and their interaction have a significant effect on the accuracy of the simulations. The most accurate combination corresponds to a 3D simulation using a Reduced Polynomial model. However, even for not-axisymmetric geometries, one can sacrifice some accuracy and use a simpler and faster modeling space (i.e. axisymmetric), at least for the simulations considered here, given a change in the modeling space has a smaller effect on accuracy than a change in the material model. 2011 artículo científico 1657-7663 https://www.redalyc.org/articulo.oa?id=133122679008 en http://www.redalyc.org/revista.oa?id=1331 Revista Avances en Sistemas e Informática application/pdf Universidad Nacional de Colombia Revista Avances en Sistemas e Informática (Colombia) Num.3 Vol.8 |
| title | Influence of material model and modeling space on the precision of a finite element simulation to predict the deformation of silicone rubber |
| topic | Computación brain indentation Finite Element Method Design of Experiments Soft tissue characterization |
| url | https://www.redalyc.org/articulo.oa?id=133122679008 |