Original title: Basic features of aggregate-matrix-interface fracture of concrete: pilot modelling
Authors: Vyhlídal, M. ; Šimonová, H. ; Veselý, V. ; Keršner, Z. ; Klusák, Jan ; Malíková, Lucie
Document type: Papers
Conference/Event: ESaT 2016 International Conference on Engineering Sciences and Technologies /2./, Vysoké Tatry (SK), 20160629
Year: 2017
Language: eng
Abstract: In this paper, the attention is paid to investigation of the importance of the Interfacial Transition Zone (ITZ) in concrete for the global fracture behaviour. A simplified cracked geometry (consisting matrix, ITZ and aggregate) is modelled by means of the finite element method with a crack terminating at the matrix-ITZ interface. Numerical studies assuming two various ITZ thicknesses and several various ITZ elastic moduli are performed. Based on the values of the opening stress ahead of the crack tip (its average value and stress range) a few conclusions are discussed. The pilot analyses dealing with the effect of ITZ on the stress distribution should contribute to better description of toughening mechanisms in silicate-based composites.
Keywords: Concrete; Fracture behaviour; Fracture mechanics; Interfacial transition zone; Matrix interfaces; Toughening mechanisms
Project no.: GA16-18702S (CEP)
Funding provider: GA ČR
Host item entry: Advances and Trends in Engineering Sciences and Technologies II, ISBN 978-131539382-7

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0277303

Permalink: http://www.nusl.cz/ntk/nusl-373314


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