Computational modeling of fiber flow during casting of fresh concrete

Computational Mechanics - Tập 63 - Trang 1111-1129 - 2018
Vladislav Gudžulić1, Thai Son Dang1, Günther Meschke1
1Institute for Structural Mechanics, Ruhr University Bochum, Bochum, Germany

Tóm tắt

The Folgar–Tucker fiber orientation model coupled with weakly compressible Smoothed Particle Hydrodynamics is used to simulate the process of casting of fiber reinforced concrete and to predict the spatial-temporal evolution of the probability density function of fiber orientation. The flowable concrete-fiber mix is modeled as a viscous Bingham-type fluid. Model predictions qualitatively agree with fiber orientations observed in an L-box test with fibers suspended in transparent gel. Important factors and assumptions regarding the fiber flow are reviewed and conclusions are drawn based on numerical experiments.

Tài liệu tham khảo

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