Engineering Mechanics

Proceedings Vol. 21 (2015)

ENGINEERING MECHANICS 2015

Copyright © 2015 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

F. Kolařík, B. Patzák, J. Zeman
pages 140 - 141, full text

Mechanical performance, surface quality, and durability of concrete structures is to a significant extent influenced by the casting process. Thus, predicting the flow behavior of concrete in the formwork, and identification of critical zones, has become an important part of the design procedure of concrete mixes. The aim of the present contribution is to model the effect of reinforcing bars in the single-fluid approach by means of computational homogenization. Flow in parts of the domain without any reinforcement is governed by Stokes equations. In areas with the reinforcement, governing equation is Darcy law, which is obtained by averaging the velocity on the microscale.

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