Proceedings Vol. 15 (2009)
ENGINEERING MECHANICS 2009
May 11 – 14, 2009, Svratka, Czech Republic
Copyright © 2009 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 641 - 644, full text
Procedure for estimation of fracture process zone size of concrete as value of characteristic length which quantifies intrinsic brittleness of the material is presented in this paper. The procedure is based on the combination of results of fracture experiments – three-point bending of specimens with a central edge notch – with results of the subsequent numerical simulations of these tests by FEM program ATENA and identification of material parameters of selected model using artificial neural networks. For illustration, three types of concrete were analysed.
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