论文部分内容阅读
从骨料的随机分布考虑,假定骨料为球形,分别模拟界面层为实体单元和接触面单元,建立了随机骨料分布模型和随机骨料接触面模型;基于CT图像,应用MATLAB和MIMICS软件,建立了不同特点的混凝土三维重建模型,对比分析以上模型的优缺点,从CT图像的CT数考虑,建立包含混凝土骨料的形状、级配、孔洞等的重建模型,该模型更加接近于真实的混凝土试件,为混凝土的细观数值模型研究提供了一条全新的研究思路,具有一定参考价值。
Considering the random distribution of aggregate, assuming that the aggregate is spherical, the interface layer is modeled as a solid unit and a contact surface unit respectively, a random aggregate distribution model and a random aggregate contact surface model are established. Based on CT images, MATLAB and MIMICS software , The three-dimensional reconstruction model of concrete with different characteristics was established, and the advantages and disadvantages of the above models were compared and analyzed. Based on the CT number of CT images, a reconstruction model including the shape, gradation and hole of concrete aggregate was established, which was closer to the true The concrete specimen provides a new research idea for the study of meso-numerical model of concrete and has certain reference value.