Microstructural models of trabecular bone - comparison of CT-based FE models

0359782 - ÚTAM 2012 RIV CZ eng C - Conference Paper (international conference)
Jiroušek, Ondřej - Zlámal, Petr
Microstructural models of trabecular bone - comparison of CT-based FE models.
Engineering Mechanics 2011. Prague: Institute of Thermomechanics AS CR, v. v. i., 2011 - (Fuis, V.), s. 247-250. ISBN 978-80-87012-33-8.
[Engineering Mechanics 2011 /17./. Svratka (CZ), 09.05.2011-12.05.2011]
R&D Projects: GA ČR(CZ) GAP105/10/2305
Institutional research plan: CEZ:AV0Z20710524
Keywords : microstructural FE model * mesh quality * trabecular bone
Subject RIV: FI - Traumatology, Orthopedics

In the article a detailed comparison of techniques used to developed detailed FE models of trabeculra bone microstructure is presented. The FE models are built using a stack of microtomographic images of trabecular bone. Compression test of a cylindrical sample taken from human proximal femur is virtually performed using FE models developed using different procedures. Effect of improper segmentation, mesh smoothing, mesh density, use of hexahedral/ tetrahedral elements, linear/ quadratic shape function is evaluated in parametric study. Material model is based on nanoindentation and numerical elastic properties of sample are compared to experimental results.
Permanent Link: http://hdl.handle.net/11104/0197495