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Parameter estimation of material model for single trabecula from micromechanical testing

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    0381171 - ÚTAM 2013 RIV CZ eng J - Journal Article
    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]
    R&D Projects: GA ČR(CZ) GAP105/10/2305
    Institutional support: RVO:68378297
    Keywords : finite element method * micromechanical testing * nanoindentation * parameter identification * trabecular bone
    Subject RIV: FI - Traumatology, Orthopedics
    Impact factor: 0.453, year: 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.
    Permanent Link: http://hdl.handle.net/11104/0211700

     
     
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