| HAL : hal-00651334, version 1 |
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| 6th World Congress on Biomechanics, Singapour : Singapour (2010) |
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| Prediction of the elastic modulus of the trabecular bone based on X-ray computed tomography |
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Kamel Madi 1G. Aufort 2 |
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| (2010) |
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| This work aims to estimate the apparent Young's modulus of real human trabecular bones using a numerical micro-macro approach. Cylindrical specimens of trabecular bone were extracted from human femur heads, cleaned and scanned using a SkyScan-1072 micro-computed tomography system. 3D volumetric tetrahedral grids were generated from the exploitation of the reconstructed images using original meshing techniques. Numerical compressive tests were simulated, assuming isotropic tissue Young's modulus for all elements. The large size of the volumes implies grids with a high number of nodes, which required the use of a large number of parallel processors in order to perform the finite element calculations. Numerical Young's moduli varied between 1300 MPa and 1600 MPa, with a good agreement with experiments. |
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| 1 : | Centre des Matériaux (MAT) |
| CNRS : UMR7633 – MINES ParisTech - École nationale supérieure des mines de Paris | |
| 2 : | Laboratoire PRISME (PRISME) |
| Université d'Orléans : EA4229 – ENSI Bourges | |
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| F2ME |
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| Domaine | : | Sciences de l'ingénieur/Mécanique/Biomécanique Physique/Mécanique/Biomécanique Sciences de l'ingénieur/Mécanique/Matériaux et structures en mécanique Physique/Mécanique/Matériaux et structures en mécanique |
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| Trabecular bone – Young's modulus – microCT – parallel computing – osteoporosis |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00651334, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00651334 | |
| oai:hal.archives-ouvertes.fr:hal-00651334 | |
| Contributeur : Alain Gasser | |
| Soumis le : Mardi 13 Décembre 2011, 13:44:42 | |
| Dernière modification le : Jeudi 1 Mars 2012, 15:50:02 | |