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Application of visco-elasto plastic model to human trabecular bone based on results from nanoindentation and verified by time lapse X-Ray microtomography
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SYSNO ASEP 0360875 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Application of visco-elasto plastic model to human trabecular bone based on results from nanoindentation and verified by time lapse X-Ray microtomography Author(s) Zlámal, Petr (UTAM-F) RID, SAI, ORCID
Jiroušek, Ondřej (UTAM-F) RID, SAI
Kytýř, Daniel (UTAM-F) SAI, RID, ORCID
Němeček, J. (CZ)Number of authors 4 Source Title ISB 2011, ISB2011 Conference book. - Brussels : International Society of Biomechanics, 2011 / Feipel V. - ISBN 9789090260198 Pages s. 211-212 Number of pages 2 s. Publication form USB - USB Action ISB 2011 Event date 03.07.2011-07.07.2011 VEvent location Brusel Country BE - Belgium Event type WRD Language eng - English Country BE - Belgium Keywords trabecular bone ; nanoindentation ; visco-elasto-plastic model Subject RIV FI - Traumatology, Orthopedics R&D Projects GAP105/10/2305 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20710524 - UTAM-F (2005-2011) Annotation This paper deals with development of a numerical visco-elasto plastic material model for a single human trabeculae and its application on a complex sample. The elastic constants for this model were obtained directly from nanoindentation, remaining ones were determined indirectly from Finite Element Analysis (FEA). Identified material model was used for a Finite Element (FE) model of complex cylindrical sample of human trabecular bone. The geometry of the FE model was obtained from X-ray micro Computed Tomography. To verify the ability of the material model to describe deformation behavior of trabecular bone a cylindrical sample was incrementally loaded in compression and the deformed microstructure repetitively scanned. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2012
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