Evaluation of sample preparation procedures for micro-mechanical testing of trabecular bone

0359883 - ÚTAM 2012 RIV DE eng C - Conference Paper (international conference)
Kytýř, Daniel - Valach, Jaroslav - Doktor, Tomáš - Jiroušek, Ondřej - Zlámal, Petr - Kostelecká, M.
Evaluation of sample preparation procedures for micro-mechanical testing of trabecular bone.
10th Youth Symposium on Experimental Solid Mechanics. Chemnitz: Chemnitz University of Technology, 2011 - (Stockmann, M.; Kretzschmar, J.), s. 71-72. ISBN 978-3-941003-34-7.
[Youth Symposium on Experimental Solid Mechanics /10./. Chemnitz (DE), 25.05.2011-28.05.2011]
R&D Projects: GA ČR(CZ) GAP105/10/2305
Institutional research plan: CEZ:AV0Z20710524
Keywords : micro-mechanical testing * sample preparation * trabecular bone
Subject RIV: JJ - Other Materials
http://www.tu-chemnitz.de/mb/FestKoerpMech/YSESM/proceedings.php

Assessment of material properties of isolated human trabeculae is highly influenced by precision of the sample preparation. Article deals with describing of the pre-testing procedure for the uniaxial testing, nanoindentation and finite element modeling of single trabeculae. The first part is focused on the specimen resection, delipidation and fixation in a novel high precision experimental device which enables to measure the strains optically using a high-resolution CCD camera. The second part deals with the development of the volumetric model of the trabecula required for numerical analysis. The last part is dedicated to optimization of polishing procedure used sample surface preparation for nanoindentation. Effect of the grain size, load and duration time of the grinding on final surface roughness was analyzed.
Permanent Link: http://hdl.handle.net/11104/0197577