Parameter estimation of material model for single trabecula from micromechanical testing

0381171 - ÚTAM 2013 RIV CZ eng J - Článek v odborném periodiku
Zlamal, P. - Jiroušek, Ondřej
Parameter estimation of material model for single trabecula from micromechanical testing.
Chemické listy. Roč. 106, č. 3 (2012), s. 572-573. ISSN 0009-2770. E-ISSN 1213-7103.
[Local Mechanical Properties 2011. Olomouc, 09.11.2011-11.11.2011]
Grant CEP: GA ČR(CZ) GAP105/10/2305
Institucionální podpora: RVO:68378297
Klíčová slova: finite element method * micromechanical testing * nanoindentation * parameter identification * trabecular bone
Kód oboru RIV: FI - Traumatologie, ortopedie
Impakt faktor: 0.453, rok: 2012

In this study a novel micromechanical device has been developed. Precision of the setup has been evaluated using specimens of known material properties. Applied force was measured with capacity load sensor and the strains were measured optically. Samples of trabeculae were harvested from human proximal femur. A FE model of trabecula was developed and three-point bending test was simulated. From displacements of markers, strain values were computed. Resulting displacements of markers from FEA were fitted to experimentally obtained ones and set of parameters of the material model was determined.
Trvalý link: http://hdl.handle.net/11104/0211700