三维数字图像相关法及其在水泥基材料变形研究中的应用  

3D digital image correlation method and its application in evaluating the volumetric deformation of cement-based materials

作　　者：张宾[1] 陈阳[1] 韦江雄[1] 张同生[1] 余其俊[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《电子显微学报》2015年第6期521-529,共9页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(No.51302090;No.51272244);中央高校基本科研业务费(No.2015ZJ0005)

摘　　要：三维数字图像相关法(three-dimensional digital image correlation,3D-DIC)又称三维数字散斑相关法(threedimensional digital speckle correlation method,3D-DSCM),是一种新型的非接触式全场光学测量方法。与比长仪等传统方法相比,三维数字图像相关法具有测量精度高,可准确测量物体表面的三维形貌和变形等优点。本文介绍了三维数字图像相关法的基本原理、关键技术和精度分析等,并结合水泥基材料的特点,讨论了三维数字图像相关法在水泥基材料变形研究中的应用。Three-dimensional digital image correlation （3D-DIC） method, also noted as three-dimensional digital speckle correlation （3D-DSCM） method, is a novel non-contact optical method for full-field deformation measurement. Compared with extensometer method, 3D-DIC method presents higher accuracy and the three-dimensional surface morphology and deformation. This paper introduces the 3D-DIC method from the viewpoints of principle, key measuring technologies, and precision analysis. Then, the application of 3D-DIC method in evaluating the volumetric deformation of cement-based materials was reviewed and prospected.

关 键 词：三维数字图像相关法 光学测量 水泥基材料 体积变形 

分 类 号：TU528[建筑科学—建筑技术科学] TP391.41[自动化与计算机技术—计算机应用技术]