Direct image-based micro finite element modelling of bone tissue

In the paper, a method for the direct image-based creation of the finite element model from images is presented. Image information is taken into account during the calculation of the element stiffness matrix. In this case, material heterogeneity can be included directly in the finite element model....

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 329; p. 3072
Main Authors Gerasimov, Oleg, Kharin, Nikita, Yaikova, Viktoriya, Statsenko, Evgeniy, Baltina, Tatyana
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 2020
Subjects
Computed tomography
Elastic properties
Electron imaging
Error analysis
Finite element method
Heterogeneity
Mathematical models
Parallel processing
Pixels
Stiffness matrix
Stress concentration
Stress distribution
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Summary:In the paper, a method for the direct image-based creation of the finite element model from images is presented. Image information is taken into account during the calculation of the element stiffness matrix. In this case, material heterogeneity can be included directly in the finite element model. For this purpose, the hypothesis about the correlation between pixel values and elastic properties was used. Four nodes plane element was built. The element can be used with the quantitative phase or scanning electron images and computed tomography data. Simulation for bone data performed. The influence of pixel on the error estimate was studied. The method to parallelize the calculation of the stiffness matrix is presented. As an example, a slice of bone was used in the calculation. Results for average stress distribution for the origin and improved mesh are presented.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/202032903072