A Measurement Method of Crack Deformation in Digital Image Correlation

doi:10.7652/xjtuxb202110020

您当前的位置：

首页 >

文章列表页 >

A Measurement Method of Crack Deformation in Digital Image Correlation

更新时间：2025-07-09

- A Measurement Method of Crack Deformation in Digital Image Correlation
- Vol. 55, Issue 10, Pages: 174-183(2021)
- 作者机构：
  
  新疆大学机械工程学院,乌鲁木齐,830046
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202110020
  CLC： TH741
- Online First：10 October 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
A Measurement Method of Crack Deformation in Digital Image Correlation[J]. 2021, 55(10): 174-183.
DOI：

A Measurement Method of Crack Deformation in Digital Image Correlation[J]. 2021, 55(10): 174-183. DOI： 10.7652/xjtuxb202110020.

摘要

为了解决传统数字图像相关法(DIC)对变形较大的裂纹边缘测量时出现的裂纹底色导致匹配相关性差、测量精度低的问题

提出一种引入高斯加权系数的裂纹边缘变形测量方法。该方法首先根据灰度梯度平方和比较算法自动调节匹配子区的高斯中心点位置; 然后

通过恒定位移填充模拟试验确定高斯加权系数中高斯标准差的适用范围; 最后

对传统DIC的相关系数进行高斯加权

得到新的相关系数。将所提方法与传统DIC方法和种子点方法分别应用于数字散斑模拟图像的刚体平移试验和Q235试件单向拉伸试验

测量开裂过程中图像的位移

结果表明:传统DIC测量方法不能得到完整的裂缝边缘区域的位移场

而所提方法能够准确测量出完整的裂缝区域的位移变化; 传统DIC方法的测量精度仅为0.05像素

而所提方法的测量精度可达到0.01像素; 所提方法在高斯标准差为1～6.5像素范围内具有最佳的匹配精度。

Abstract

In order to solve the problems of poor matching correlation and low measurement accuracy caused by crack bottom color in traditional digital image correlation(DIC)method when measuring crack edge with large deformation

a measurement method of crack edge deformation based on Gaussian weighting coefficient is proposed. Firstly

the position of the Gaussian center in the matching sub-region is automatically adjusted according to the gray gradient sum of squares comparison algorithm. Then

the application scope of Gaussian standard deviations in Gaussian weighting coefficient is determined by constant displacement filling simulation experiment. Finally

a new correlation coefficient is obtained by Gaussian weighting the correlation coefficient of traditional DIC. The proposed method

the traditional DIC method and the seed point method are applied to the rigid body translation experiment of the digital speckle simulation image and the uniaxial tensile experiment of the Q235 specimen

respectively

to measure the displacement of the image during the cracking process. The results show that the traditional DIC method cannot get the complete displacement field of the crack edge area

but the proposed method can accurately measures the displacement variation of the complete crack area. The accuracy of the traditional DIC method is only 0.05 pixels

while the measurement accuracy of the proposed method can reach 0.01 pixels

and it has the best matching accuracy in the Gaussian standard deviation range from 1 to 6.5 pixels.

关键词

Keywords

references

王娜. 采用DIC研究岩石-混凝土界面裂缝扩展过程 [D]. 辽宁大连: 大连理工大学, 2016: 10-20.

李彦豪. 数字图像相关方法(DIC)在材料力学实验中的应用研究 [D]. 福建厦门: 厦门大学, 2019: 5-25.

ZHANG Z, ZHANG D, PENG X. Performance analysis of a 3D full-field sensor based on fringe projection [J]. Optics and Lasers in Engineering, 2004, 42(3): 341-353.

程振进, 王全保, 陈吉安. 基于混合遗传算法的数字图像相关方法 [J]. 光学精密工程, 2016, 24(10): 710-717.

CHENG Zhenjin, WANG Quanbao, CHEN Ji'an. Digital image correlation method based on hybrid genetic algorithm [J]. Optics and Precision Engineering, 2016, 24(10): 710-717.

陈志新, 梁晋, 郭成. 数字散斑相关法在变形测量中的应用 [J]. 光学精密工程, 2011, 19(7): 1480-1485.

CHEN Zhixin, LIANG Jin, GUO Cheng. Application of digital speckle correlation method in deformation measurement [J]. Optics and Precision Engineering, 2011, 19(7): 1480-1485.

LUO Zhilei, HU Xu, WANG Linlin, et al. Measurement of large, discontinuous displacement from digital images [J]. Strain, 2020, 56(4): e12349.

潘兵, 续伯钦, 谢惠民, 等. 面内位移测量的基于梯度的数字图像相关方法 [J]. 光学技术, 2005, 31(5): 643-647.

PAN Bing, XU Boqin, XIE Huimin, et al. In-plane displacement measurement by gradient-based digital image correlation [J]. Optical Technique, 2005, 31(5): 643-647.

CHEN Zhixin, LIANG Jin, ZHANG Dehai, et al. Speckle technique applied to precise measurement of strain [C]∥2010 International Conference on Computer Engineering and Technology. Piscataway, NJ, USA: IEEE, 2010: V2533-V2536.

张尧. 基于数字图像相关法的断裂研究与数值模拟 [D]. 北京: 清华大学, 2016: 10-30.

孙强, 李雪东, 姚腾飞, 等. 基于DIC的爆炸加载下脆性材料裂纹扩展规律的实验研究 [J]. 爆炸与冲击, 2019, 39(10): 31-41.

SUN Qiang, LI Xuedong, YAO Tengfei, et al. Experimental study on crack propagation of brittle materials based on DIC under explosive loading [J]. Explosion and Shock Waves, 2019, 39(10): 31-41.

俞海, 郭荣鑫, 夏海廷, 等. 数字梯度敏感法在静态断裂力学实验中的应用 [J]. 激光技术, 2014, 38(5): 627-631.

YU Hai, GUO Rongxin, XIA Haiting, et al. Digital gradient sensing measurement applied in static fracture mechanics experiments [J]. Laser Technology, 2014, 38(5): 627-631.

刘纲, 李孟珠, 蒋伟, 等. 古建筑彩绘梁整像素位移自适应搜索解算方法 [J]. 湖南大学学报(自然科学版), 2020, 47(11): 106-113.

LIU Gang, LI Mengzhu, JIANG Wei, et al. Adaptive search algorithm method of whole-pixel deformation for ancient building painted beams [J]. Journal of Hunan University(Natural Sciences), 2020, 47(11): 106-113.

廖健, 章红梅, 陈杨. 基于数字图像相关法(DIC)的剪力墙破坏过程分析 [J]. 结构工程师, 2019, 35(3): 83-90.

LIAO Jian, ZHANG Hongmei, CHEN Yang. Analysis of the shear wall failure process based on DIC method [J]. Structural Engineers, 2019, 35(3): 83-90.

CHEN Z X, LIANG J, GUO C. The research of speckle technique in deformation measurement fields [J]. Advanced Materials Research, 2011, 201/202/203: 1998-2002.

唐正宗, 梁晋, 肖振中, 等. 用于三维变形测量的数字图像相关系统 [J]. 光学精密工程, 2010, 18(10): 2244-2253.

TANG Zhengzong, LIANG Jin, XIAO Zhenzhong, et al. Digital image correlation system for three-dimensional deformation measurement [J]. Optics and Precision Engineering, 2010, 18(10): 2244-2253.

王立忠, 汪耀, 梁晋, 等. 高速三维数字图像法测量手机跌落全场应变 [J]. 光学精密工程, 2018, 26(9): 2174-2180.

WANG Lizhong, WANG Yao, LIANG Jin, et al. Measurement of full-field strain in cell phone dropping test by high-speed 3D digital image correlation method [J]. Optics and Precision Engineering, 2018, 26(9): 2174-2180.

朱飞鹏, 龚琰, 白鹏翔, 等. 基于数字图像相关的光学引伸计应变测量精度研究 [J]. 光学精密工程, 2018, 26(5): 1061-1069.

ZHU Feipeng, GONG Yan, BAI Pengxiang, et al. Study on strain measurement accuracy of optical exten-someters based on digital image correlation [J]. Optics and Precision Engineering, 2018, 26(5): 1061-1069.

胡慧然, 但西佐, 赵琪涵, 等. 数字图像相关中的散斑区域自动提取研究 [J]. 中国光学, 2019, 12(6): 1329-1337.

HU Huiran, DAN Xizuo, ZHAO Qihan, et al. Automatic extraction of speckle area in digital image correlation [J]. Chinese Optics, 2019, 12(6): 1329-1337.

PAN B, XIE H, WANG Z. Equivalence of digital image correlation criteria for pattern matching [J]. Applied Optics, 2010, 49(28): 5501-5509.

PAN Bing, XIE Huimin, WANG Zhaoyang, et al. Study on subset size selection in digital image correlation for speckle patterns [J]. Optics Express, 2008, 16(10): 7037-7048.

唐正宗, 梁晋, 肖振中, 等. 大变形测量数字图像的种子点匹配方法 [J]. 西安交通大学学报, 2010, 44(11): 51-55.

TANG Zhengzong, LIANG Jin, XIAO Zhenzhong, et al. Digital image correlation method based on seed point for large deformation measurement [J]. Journal of Xi'an Jiaotong University, 2010, 44(11): 51-55.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Expansion Angle Crater Film Hole on the Film Cooling Characteristics of a Double-Wall Structure

Influence of Structural Parameters on the Summer Operational Characteristics of a Three-Tower-in-One Indirect Air-Cooling System

Turbulent Kinetic Energy Dissipation Mechanism of Supercritical Carbon Dioxide Leakage Flow in a Scallop Bionic Seal Cavity

Numerical Simulation of Heat-Moisture Barrier Performance of a Horizontal Air Curtain in Cold Storage

Electrothermal Coupling Research on the Evolutionary Law of Anti-Corona Performance for High-Altitude Air-Cooled Generators

Related Author

No data

Related Institution

No data

⁰