Original title: Indirect determination of material model parameters for single trabecula based on nanoindentation and three-point bending test
Authors: Zlámal, P. ; Jiroušek, Ondřej ; Kytýř, Daniel ; Doktor, Tomáš
Document type: Papers
Conference/Event: Engineering Mechanics 2012, Svratka (CZ), 2012-05-14 / 2012-05-17
Year: 2012
Language: eng
Abstract: The aim of the paper is to develop a procedure for determination of elasto-visco-plastic constitutive model with damage for human single trabecula. The procedure is suited for indirect establishing of material model based on nanoindentation and three-point bending test. Constants of the material model are identified by Finite Element (FE) simulations and curve fitting using an algorithm based on least squares fitting of the experimental curves. In the case of nanoindentation, the penetration depth of tip during the FE analyses (FEA) is fitted to experimental nanoindentation curves. In the case of three-point bending, displacements of nodes are compared with displacements of markers observed during the experiment using digital image correlation.
Keywords: elasto-visco-plastic-damage model; FEM; three-point bending; trabecular bone
Project no.: GAP105/10/2305 (CEP)
Funding provider: GA ČR
Host item entry: Engineering Mechanics 2012, ISBN 978-80-86246-40-6

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0209727

Permalink: http://www.nusl.cz/ntk/nusl-115370


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers