Compressive behaviour of trabecular tissue: finite element modelling and comparison using digital volume correlation

0396013 - ÚTAM 2014 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Zlámal, Petr - Jiroušek, Ondřej - Doktor, Tomáš - Fíla, Tomáš - Kytýř, Daniel
Compressive behaviour of trabecular tissue: finite element modelling and comparison using digital volume correlation.
Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing. Kippen: Civil-Comp Press, 2013 - (Topping, B.; Iványi, P.). Civil-Comp Proceedings, 102. ISBN 978-1-905088-57-7. ISSN 1759-3433.
[International Conference on Civil, Structural and Environmental Engineering Computing /14./. Cagliari (IT), 03.09.2013-06.09.2013]
Grant CEP: GA ČR(CZ) GAP105/10/2305
Institucionální podpora: RVO:68378297
Klíčová slova: trabecular bone * porous material * digital volume correlation * finite element modelling
Kód oboru RIV: JJ - Ostatní materiály

In this paper the deformation behaviour of the complex structure of a trabecular bone is investigated using the finite element (FE) simulation of a compression test. To obtain a geometrically accurate FE model of the trabecular microstructure and suitable experimental data for model validation time–lapsemicro-CT scanning of the compression test was undertaken. The sample was placed in a loading device and subjected to incremental compressive loading (up to 6 % deformation with 1 % strain increments) and observed using a fine–focus X-ray microradiographic imaging. Tomography of the sample was performed at each load step and the radiograms were reconstructed using the cone beam reconstruction technique to obtain spatial image data of the deformation process. Reconstructed image data of each load state enables the FE model to be valiated and the constitutive relations used for description of the deformation behaviour to be tested.
Trvalý link: http://hdl.handle.net/11104/0224074