东南大学学报（自然科学版）2017，Vol.47Issue(2)：242-246,5.DOI:10.3969/j.issn.1001-0505.2017.02.008
多尺度二维数字图像相关测量系统及其应用
Multi-scale two-dimensional digital image correlation system and its application
摘要
Abstract
To realize multi-scale deformation measurement using digital image correlation (DIC),a multi-scale two-dimensional digital image correlation (DIC)system was introduced.The measurement device consists of an electric three-axis translation stage,four high-resolution CMOS cameras,three telecentric lens with different magnifications,and a microscope.Deformation measurements from macro to micro were performed by using the device.The measured results indicate that the system can be used for tracking the micro-region by precisely controlling the three-axis translation stage.After the system calibration,the measurement scale was changed for the arbitrary observation region to meet the requirements of the accuracy and the observation.Using the surface texture of bainitic steel after corrosion,the DIC measurement from macro to micro was achieved.Measurement results show that the system has good potential for studying of the mechanical behavior of the crack tip.关键词
多尺度测量/数字图像相关/变形测量/裂纹尖端Key words
multi-scale measurement/digital image correlation/deformation measurement/crack tip分类
机械制造引用本文复制引用
邵新星,何小元,张瑾琳..多尺度二维数字图像相关测量系统及其应用[J].东南大学学报（自然科学版）,2017,47(2):242-246,5.基金项目
国家自然科学基金资助项目(11272089,11327201,11532005)、“十二五”国家科技支撑计划资助项目(2014BAK11B04). （11272089,11327201,11532005）
