Influence de l'architecture cellulaire de l'os spongieux sur sa réponse mécanique
| Autor: | Pascal Drazetic, Eric Markiewicz, Julien Halgrin, Fahmi Chaari |
|---|---|
| Přispěvatelé: | Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Centre National de la Recherche Scientifique (CNRS)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), CSMA |
| Jazyk: | francouzština |
| Rok vydání: | 2009 |
| Předmět: |
Engineering
030209 endocrinology & metabolism os trabéculaire Industrial and Manufacturing Engineering 03 medical and health sciences 0302 clinical medicine 11. Sustainability caractérisation mécanique expérimentale [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] Forensic engineering medicine General Materials Science [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph] 030304 developmental biology 0303 health sciences business.industry Mechanical Engineering Micro computed tomography caractérisation numérique Structural engineering Numerical models Compression (physics) Finite element method Trabecular bone medicine.anatomical_structure Compression test business human activities Cancellous bone |
| Zdroj: | Mécanique & Industries 9e Colloque national en calcul des structures 9e Colloque national en calcul des structures, CSMA, May 2009, Giens, France. pp.203-208, ⟨10.1051/meca/2010036⟩ |
| DOI: | 10.1051/meca/2010036⟩ |
| Popis: | Car manufacturers use virtual human models in order to ensure the passengers safety during crash events. To improve the bio-fidelity of these models, we propose to identify the mechanical behaviour of bone tissues, and more particularly of the cancellous bone. After scanning cancellous bone samples with micro computed tomography, compression tests have been performed. The inter and intra-individual variabilities have been studied in order to minimise the results dispersions. Numerical models (taking into account the real architecture of this tissue) have been generated from the data coming from μCT in order to study the effects of architectural parameters on the mechanical behaviour of the cancellous bone. The experimental and numerical results show the need to take into account the inter and intra-individual variabilities in order to identify the mechanical behaviour of the trabecular bone. If the relative density could explain the mechanical dispersions observed, the relationship established could not explain the different behaviour observed between various loading directions. |
| Databáze: | OpenAIRE |
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