期刊
COMPUTATIONAL PARTICLE MECHANICS
卷 1, 期 4, 页码 373-389出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s40571-014-0002-y
关键词
3D simulation; Self-compacting concrete; Non-Newtonian viscous flow; Smooth particle hydrodynamic (SPH); Short steel fibres
In part I of this two-part paper, a three-dimensional Lagrangian smooth particle hydrodynamics method has been used to model the flow of self-compacting concrete (SCC) with or without short steel fibres in the slump cone test. The constitutive behaviour of this non-Newtonian viscous fluid is described by a Bingham-type model. The 3D simulation of SCC without fibres is focused on the distribution of large aggregates (larger than or equal to 8 mm) during the flow. The simulation of self-compacting high-and ultra-high-performance concrete containing short steel fibres is focused on the distribution of fibres and their orientation during the flow. The simulation results show that the fibres and/or heavier aggregates do not precipitate but remain homogeneously distributed in the mix throughout the flow.
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