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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 108
PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping
Paper 220

Combining Homogenization, Nanoindentation and Bayesian Updating in Search for Micro-Fibril Angle

M. Šejnoha, L. Kucíková, V. Králík and J. Šejnoha

Faculty of Civil Engineering, Czech Technical University in Prague, Czech Republic

Full Bibliographic Reference for this paper
, "Combining Homogenization, Nanoindentation and Bayesian Updating in Search for Micro-Fibril Angle", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 220, 2015. doi:10.4203/ccp.108.220
Keywords: wood, nanoindentation, micromechanical homogenization, micro-fibril angle, random properties, Bayesian updating.

Summary
This paper is concerned with the evaluation of effective properties of wood from classical micromechanical models while treating the micro-fibril angle (MFA) of cellulose as a random parameter. It is expected that the prior distribution of MFA can be obtained by comparing the estimated homogenized longitudinal modulus of wood with the corresponding counterpart found from isotropic nanoindentation. While this step is described in detail in this paper, the following step based on the Bayesian statistical theory to search for the posterior distribution of MFA is introduced only conceptually.

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