Original title: Identification of elasto-visco-plastic constitutive material model with damage for porous material based on the indirect finite element simulation of the nanoindentation test
Authors: Zlamal, P. ; Jiroušek, Ondřej ; Králík, V.
Document type: Papers
Conference/Event: Bilateral Czech/German Symposium /13./, Telč (CZ), 2012-06-05 / 2012-06-08
Year: 2012
Language: eng
Abstract: The aim of this study is to determine elasto-visco-plastic material model with damage for two basic structure elements of diferent porous materials: (i) human single trabecula and (ii) wall of Alporas metal foam. Indirect identification of constants of the material model is based on the numerical simulations of the nanoindentation test using custom-built optimization algorithm. During the optimization procedure the numerical results are fitted to the experimentally obtained nanoindentation curves and the best set of the constants is determined using the least squares method. For evaluation of the influence of the individual material constants a sensitivity study is performed.
Keywords: Alporas; FEM; metal foam; trabecular bone; visco-elasto-plastic with damage
Project no.: GAP105/10/2305 (CEP), GAP105/12/0824 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: Experimental Methods and Numerical Simulation in Engineering Sciences, ISBN 978-80-01-05062-0

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0213295

Permalink: http://www.nusl.cz/ntk/nusl-134960


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers