Digital design computing and modelling for 3-D concrete printing
Digital design computing and modelling for 3-D concrete printing
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DOI：
10.1016/j.autcon.2020.103529
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发表时间：
2021-03
影响因子：
10.3
通讯作者：
Vuong Nguyen-Van;B. Panda;Guomin Zhang;H. Nguyen-Xuan;P. Tran
中科院分区：
文献类型：
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作者：
Vuong Nguyen-Van;B. Panda;Guomin Zhang;H. Nguyen-Xuan;P. Tran
本文提出了一种新的3D混凝土打印（3DCP）过程的计算框架，以捕获复杂的三重周期最小表面（TPMS）Gyroid和Primitive块的逐层可构建性和失效模式。所提出的计算框架是使用从Gcode转换的刀具路径数据集作为输入源进行的，该数据集是从3D打印切片软件创建的虚拟模型中提取的。新开发的计算框架进行了验证的实验结果的空心圆柱体打印使用纳米粘土水泥混合。该框架可以预测印刷空心圆柱的各种失效模式，其结果与实验结果吻合良好。然后，通过使用从实验中选择的印刷材料来模拟TPMS块的3DCP过程。与原始结构相比，Gyroid结构具有较低的可建造性。进一步，参数和敏感性分析进行揭示印刷速度的可构建性和其在具体的印刷过程中的垂直变形的影响。
A novel computational framework of 3D concrete printing (3DCP) process is proposed in this paper to capture layer-by-layer buildability and failure modes of complex triply periodic minimal surface (TPMS) Gyroid and Primitive blocks. The proposed computational framework is conducted using toolpath dataset converted from Gcode as input source, which is extracted from virtual model created by 3D printing slicing software. The newly developed computational framework is validated by experimental outcomes of a hollow cylinder printed using nano-clay cement mix. The framework can predict various failure modes of the printed hollow cylinder, and its outcomes agree well with the experimental results. The 3DCP process of the TPMS blocks is then modelled by using the selected printing material from the experiment. The Gyroid structure is demonstrated numerically to have a lower buildability in comparison with the Primitive counterpart. Further, parametric and sensitivity analyses are conducted to reveal the effects of printing speed on buildability and its vertical deformation in the concrete printing process.