Digital Image Correlation for Cement-based Materials and Structural Concrete Testing
Digital Image Correlation for Cement-based Materials and Structural Concrete Testing
复制标题
水泥基材料和结构混凝土测试的数字图像关联
DOI：
10.9744/ced.22.1.6-12
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发表时间：
2020
影响因子：
4.1
通讯作者：
P. Suprobo
中科院分区：
文献类型：
--
作者：
A. Tambusay;B. Suryanto;P. Suprobo
本文介绍了一种低成本的数字图像相关（DIC）系统的自动裂纹映射的应用。该系统采用传统的数码相机，远程图像记录控制器，和开源的数字图像相关MATLAB软件Ncorr。为了展示拟议系统的潜力，进行了两个涉及一般结构和材料测试的案例研究。在第一个系列中，DIC系统被用来研究断裂过程中的钢筋混凝土梁和调查的关键输入参数的影响，从DIC分析得到的应变图的空间质量。在第二个系列中，DIC方法的应用得到了扩展，以帮助研究韧性水泥复合材料试验中复杂的多微裂纹形成。结果表明，由DIC技术得到的应变图与实际裂纹图案非常相似
This paper presents the application of a low-cost digital image correlation (DIC) system for automated crack mapping. The system employed makes use of a conventional digital camera, a remote image recording controller, and an open-source digital image correlation MATLAB software Ncorr. To showcase the potential of the proposed system, two case studies involving general structural and material testing were undertaken. In the first series, the DIC system was used to study the fracture processes in a reinforced concrete beam and to investigate the influence of key input parameters on the spatial quality of strain maps obtained from the DIC analysis. In the second series, the application of the DIC method was expanded to assist in the study of complex multiple micro-crack formations in ductile cement composite testing. It is shown that the strain maps obtained from the DIC technique have a close resemblance to the actual crack patterns