Calibration on material model for trabecular bone verified by time-lapse X-Ray microtomography

0342172 - ÚTAM 2011 RIV CA eng C - Conference Paper (international conference)
Zlámal, Petr - Kytýř, Daniel - Jiroušek, Ondřej
Calibration on material model for trabecular bone verified by time-lapse X-Ray microtomography.
Proc. of the 7th IASTED intern. conf on Biomedical engineering. Calgary: ACTA Press, 2010 - (Hierlemann, J.), s. 67-71. ISBN 978-0-88986-828-1.
[IASTED Intern. conf. on Biomedical engineering /7./. Innsbruck (AT), 17.02.2010-19.02.2010]
R&D Projects: GA ČR(CZ) GAP105/10/2305
Institutional research plan: CEZ:AV0Z20710524
Keywords : computed tomography * FEM * image reconstruction * nanoindentation * trabecular bone
Subject RIV: FI - Traumatology, Orthopedics

The paper deals with investigation of the trabecular bone behaviour during compression test. Paper describes loading test of trabecular bone specimen using real-time Computer Tomography scanning and its simulation by Finite Element Method. Model for the Finite Element simulation was obtained using the reconstruction from tomographic projections of the zero deformation state. Deformation states were reconstructed to assess the three-dimensional strain field in the microstructure and compared with results from FE simulations. Assessment of the material model was based on nanoindentation experiment. The nanoindentation test of the trabecular bone sample was performed and the material model was identified from FE simulation of the nanoindentation test.
Permanent Link: http://hdl.handle.net/11104/0184981