Three-dimensional modelling of steel fiber reinforced concrete material under intense dynamic loading

Projectile penetration of ultra-high performance cement based composites at 510–1320m/s

“…Comparably, the anti-strike contribution of coarse aggregate cannot be realized in the high strength RPC because coarse aggregates are difficulty to be added under common curing conditions. For the experimental difficulties and random tests data, the quantitative investigations of the contributions of the size and strength of the coarse aggregates on the impact resistance of the concrete target are not conducted in the present tests, which were discussed numerically by Fang and Zhang [22] based on the 3D meso-model of fiber reinforced concrete.…”

Numerical simulation of SHPB test of ultra-high performance fiber reinforced concrete with meso-scale model

“…针对上述问题, 一些学者在细观层面研究了 混凝土材料的破坏机理. 杜修力等人 [7] 总结研究了混 凝土宏观力学特性的细观力学分析方法, 提出了一种 混凝土宏观力学性能研究的细观单元等效化分析方 法. Fang等人 [8] 建立了钢纤维混凝土材料在冲击和爆 炸荷载作用下的动力响应和破坏模式的三维数值模 型. 金浏等人 [9][10][11] 建立了细观尺度数值分析模型, 研究 了混凝土材料性能、钢筋混凝土悬臂梁在循环往复荷 载作用下的抗剪破坏以及落锤速度对钢筋混凝土梁抗 冲击性能的影响规律.…”

An efficient method to derive statistical mechanical properties of concrete reinforced with spiral-shaped steel fibres in dynamic tension

“…To account for the randomly distributed coarse aggregates and steel fibres, modelling the SFRC specimens in mesoscale is needed. A number of researchers have performed mesoscale modelling of SFRC materials under static loading [13,14], impact loading [7,14,15] and blast loading [16]. With distinctive consideration of steel fibres, coarse aggregates and mortar matrix, detailed observations such as stress and strain distributions, crack initiation and propagation, fibre-matrix interaction, can be made through these studies.…”