Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
International Journal for Multiscale Computational Engineering
Impact-faktor: 1.016 5-jähriger Impact-Faktor: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Druckformat: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2014010181
pages 361-374

TWO-SCALE NUMERICAL HOMOGENIZATION OF THE CONSTITUTIVE PARAMETERS OF REACTIVE POWDER CONCRETE

Arkadiusz Denisiewicz
Institute of Building Engineering, University of Zielona Gora, Licealna 9, 65-417 Zielona Gora, Poland
Mieczyslaw Kuczma
Institute of Structural Engineering, Poznan University of Technology, Pl. Marii Sklodowskiej-Curie 5, 60-965 Poznan, Poland

ABSTRAKT

The paper is concerned with the modeling of reactive powder concrete (RPC) by using the method of numerical homogenization. More specifically, a two-scale modeling approach and the finite element method are used. The behavior of a model of RPC on the macro scale is described on the basis of the phenomena occurring in the microstructure of the material. The applied approach makes it possible to take into account the microstructure of material as concerns the different mechanical properties of its constituents. The method does not require any knowledge of the constitutive equations at the macro level, which are determined implicitly by solving a boundary value problem for a representative volume element (RVE) of RPC on the micro level. In order to determine the constitutive equations on the macro scale it is necessary to know the layout of microstructure, the constitutive equations at the micro level, and their parameters. In this contribution the response of each of the concrete constituents (cement matrix, sand, crushed quartz) is assumed to be elastic. The microstructure of RPC concrete is randomly generated. A computer program for the two-scale homogenization of 2D disks has been developed and numerical results for micro and micromacro test problems are presented. Further studies of the considered problem, including also laboratory experiments, are under way.


Articles with similar content:

Homogeneous Analysis of Periodic Assemblies of Elastoplastic Disks in Contact
International Journal for Multiscale Computational Engineering, Vol.1, 2003, issue 4
Hongwu Zhang, D. P. Boso, Bernhard Schrefler
Calibration of a Nonlinear Elastic Composite With Goal-Oriented Error Control
International Journal for Multiscale Computational Engineering, Vol.3, 2005, issue 3
Hakan Johansson, Kenneth Runesson, Fredrik Larsson
Proposal of the concrete−GFR P interaction models
Composites: Mechanics, Computations, Applications: An International Journal, Vol.5, 2014, issue 4
Giosue Boscato, Salvatore Russo
PREDICTION OF DISTRIBUTION OF MICROSTRUCTURAL PARAMETERS INMETALLIC MATERIALS DESCRIBED BY DIFFERENTIAL EQUATIONS WITH RECRYSTALLIZATION TERM
International Journal for Multiscale Computational Engineering, Vol.17, 2019, issue 3
Jan Kusiak, Maciej Pietrzyk, Danuta Szeliga, Piotr Oprocha, Paweł Przybyłowicz, Lukasz Rauch, Natalia Czyzewska, Paweł Morkisz
ANALYSIS OF PREDICTIVE CAPABILITIES OF MULTISCALE PHASE TRANSFORMATION MODELS BASED ON THE NUMERICAL SOLUTION OF HEAT TRANSFER AND DIFFUSION EQUATIONS
International Journal for Multiscale Computational Engineering, Vol.15, 2017, issue 5
Krzysztof Bzowski, Maciej Pietrzyk, Monika Pernach, Lukasz Rauch