Singularity-free finite element model of bone through automated voxel-based reconstruction.
Comput Methods Biomech Biomed Engin
; 19(3): 257-262, 2016 Feb.
Article
en En
| MEDLINE
| ID: mdl-25723404
ABSTRACT
Computed tomography (CT) provides both anatomical and density information about tissues. Bone is segmented by raw images and Finite Element Method (FEM) voxel-based meshing technique is achieved by matching each CT voxel to a single finite element (FE). As a consequence of the automated model reconstruction, unstable elements - i.e. elements insufficiently anchored to the whole model and thus potentially involved in partial rigid body motion - can be generated, a crucial problem in obtaining consistent FE models, hindering mechanical analyses. Through the classification of instabilities on topological connections between elements, a numerical procedure is proposed in order to avoid unconstrained models.
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Base de datos:
MEDLINE
Asunto principal:
Huesos
/
Análisis de Elementos Finitos
Idioma:
En
Revista:
Comput Methods Biomech Biomed Engin
Asunto de la revista:
ENGENHARIA BIOMEDICA
/
FISIOLOGIA
Año:
2016
Tipo del documento:
Article