Currently, steel-fibre-reinforced self-compacting concrete (SFRSCC) is widely used in infrastructure construction. The distribution and orientation of the fibres could directly determine the mechanical properties and behaviours of the SFRSCC component. This paper presents a new numerical simulation that can be used to calculate the distribution and orientation of the fibres in the SCC during the casting procedure. The casting procedure of the SFRSCC is investigated by using the computational fluid dynamics software CFX, based on the finite-volume method. The motion of the fibres can be simplified into translation and rotation, and the Matlab program simulates the procedure. To verify the method's accuracy, a casting procedure for a SFRSCC beam was simulated and the fibres’ density in three orthogonal planes was investigated. The calculation results show good agreement with the experimental results, and the method is effective in analysing the distribution and orientation of fibres in SCC. To further analy...

中文翻译：

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SCC中钢纤维分布和取向的数值模拟

目前，钢纤维增强自密实混凝土（SFRSCC）广泛应用于基础设施建设。纤维的分布和取向可以直接决定 SFRSCC 组件的力学性能和行为。本文提出了一种新的数值模拟，可用于计算铸造过程中 SCC 中纤维的分布和取向。基于有限体积法，利用计算流体动力学软件CFX，研究了SFRSCC的铸造过程。纤维的运动可以简化为平移和旋转，Matlab程序模拟该过程。为了验证该方法的准确性，模拟了 SFRSCC 梁的铸造过程，并研究了三个正交平面中的纤维密度。计算结果与实验结果吻合较好，该方法可有效分析SCC中纤维的分布和取向。进一步分析...