Počet záznamů: 1

Development of Visco-elasto-plastic Material Model for Human Trabecular Bone using Nanoindentation

  1. 1.
    0359950 - UTAM-F 2012 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
    Zlámal, Petr - Kytýř, Daniel - Jiroušek, Ondřej - Němeček, J.
    Development of Visco-elasto-plastic Material Model for Human Trabecular Bone using Nanoindentation.
    10th Youth Symposium on Experimental Solid Mechanics. Chemnitz: Chemnitz University of Technology, 2011 - (Stockmann, M.; Kretzschmar, J.), s. 127-128. ISBN 978-3-941003-34-7.
    [Youth Symposium on Experimental Solid Mechanics /10./. Chemnitz (DE), 25.05.2011-28.05.2011]
    Grant CEP: GA ČR(CZ) GAP105/10/2305
    Výzkumný záměr: CEZ:AV0Z20710524
    Klíčová slova: trabecular bone * material model * nanoindentation
    Kód oboru RIV: FI - Traumatologie, ortopedie
    http://www.tu-chemnitz.de/mb/FestKoerpMech/YSESM/proceedings.php

    Knowledge of trabecular bone behaviour under loading is very important for the bone quality assessment. For investigation of deformation behaviour of trabecular bone a combination of computational and experimental method was used. In this study suitable visco-elasto/plastic material model for single trabeculae was established from numerical simulation of nanoindentation test. The visco-elasto/plastic model with von Mises yield criterion and bilinear isotropic hardening with implicit creep was chosen. Pure elastic material constants can be determined directly from nanoindentation test by Oliver-Pharr method. Other constants determining the plastic and creep behaviour of the model have to be identified indirectly by fitting the load-displacement curve to results from the Finite Element (FE) simulation of nanoindentation test.
    Trvalý link: http://hdl.handle.net/11104/0197623