数字图像相关方法在WC/Cu复合材料线膨胀系数测量中的应用

俞海1; 郭荣鑫1; 夏海廷1; 颜峰1; 张玉波1; 何天淳2

doi:10.3788/OPE.20132110.2696

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数字图像相关方法在WC/Cu复合材料线膨胀系数测量中的应用

信息科学 | 更新时间：2020-08-12

- 数字图像相关方法在WC/Cu复合材料线膨胀系数测量中的应用
- Application of digital image correlation method in measuring linear expansion coefficient of WC/Cu Composites
- 光学精密工程 2013年21卷第10期页码：2696-2703
- 作者机构：
  
  1. 昆明理工大学工程力学系云南省先进材料力学行为与微观结构设计高校重点实验室,云南昆明,650500
  2. 云南大学,云南昆明,650500
- 作者简介：
- 基金信息：
  
  高等学校博士学科点专项科研基金(20136101110019)
- DOI：10.3788/OPE.20132110.2696
  中图分类号： O348.1
- 收稿日期：2013-04-12，
  
  修回日期：2013-05-27，
  
  网络出版日期：2012-10-19，
  
  纸质出版日期：2013-10-15
- 稿件说明：
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俞海郭荣鑫夏海廷颜峰张玉波何天淳. 数字图像相关方法在WC/Cu复合材料线膨胀系数测量中的应用[J]. 光学精密工程, 2013,21(10): 2696-2703

YU Hai GUO Rong-xin XIA Hai-ting YAN Feng ZHANG Yu-bo HE Tian-chun. Application of digital image correlation method in measuring linear expansion coefficient of WC/Cu Composites[J]. Editorial Office of Optics and Precision Engineering, 2013,21(10): 2696-2703
俞海郭荣鑫夏海廷颜峰张玉波何天淳. 数字图像相关方法在WC/Cu复合材料线膨胀系数测量中的应用[J]. 光学精密工程, 2013,21(10): 2696-2703 DOI： 10.3788/OPE.20132110.2696.

YU Hai GUO Rong-xin XIA Hai-ting YAN Feng ZHANG Yu-bo HE Tian-chun. Application of digital image correlation method in measuring linear expansion coefficient of WC/Cu Composites[J]. Editorial Office of Optics and Precision Engineering, 2013,21(10): 2696-2703 DOI： 10.3788/OPE.20132110.2696.

摘要

为了提高数字图像相关曲面拟合法在实际应用中的亚像素定位精度，对曲面拟合法进行了修正，并用修正后的曲面拟合法研究了WC颗粒大小和含量对WC/Cu复合材料线膨胀系数的影响。首先，分析了曲面相关拟合法在实际应用中的测量误差来源，并对其进行了修正。然后，用粉末冶金法制备出WC/Cu复合材料，对表面制备有耐高温散斑的试件进行热膨胀实验，并利用修正后的曲面拟合法测量了不同温度下WC/Cu复合材料的热变形场。最后，通过一元二次多项式拟合建立了WC/Cu复合材料热膨胀系数真值。结果表明：修正后的曲面拟合法有效地改善了传统方法的亚像素位移在0.5像素左右位移场不连续的问题，减小了亚像素定位误差，获得了更为准确的测量数据。

Abstract

To improve the sub-pixel registration accuracy of quadratic surface fitting method in digital image correlation

the method was corrected and the corrected quadratic surface fitting method was used to research the effect of sizes and contents of WC on the thermal expansion coefficients of WC/Cu composites. First

the measurement error sources of the quadratic surface fitting method were analyzed in a practical application. Then

WC/Cu composites were prepared by a powder metallurgy method

and thermal expansion tests of the specimen with speckles which can resistant to high temperatures were performed and thermal deformation fields of the WC/Cu Composites under different temperatures were measured by the corrected quadratic surface fitting method. Finally

the truth values of the thermal expansion coefficients were given by quadratic polynomials fitting. The experiment result indicates that corrected method effectively improves sub-pixel registration accuracy

especially reduces the displacement fluctuation around 0.5 pixels

and offers more accurate measurement results.

关键词

Keywords

references

李晓杰，王占磊，李瑞勇，等. 爆炸粉末烧结法制取WC／Cu复合材料的研究[J].材料开发与应用，2006，21(3): 16-17.LI X J,WANG ZH L,LI R Y,et al.. Experimental study on WC／Cu composites produced by explosive powder compaction [J].Development and Application of Materials, 2006,21(3):16-17. (in Chinese)[2]KIYOSHI．Electric conductivity and mechanical properties of carbide dispersion strengthened copper prepared by compocasting [J]．Materials Transaction JIM，1993，34(8): 718-724.[3]花世群, 骆英, 花世荣, 等. 基于条纹跟踪实现热膨胀系数的高精度自动测量[J].光电子激光，2007，18(11): 1344-1345. HUA SH Q, LUO Y, HUA SH R, et al.. High precision automatic measurement of thermal expansion coefficient based on tracing interference fringe [J].Journal of Optoelectronics Laser,2007,18(11):1344-1345. (in Chinese)[4]陈华, 叶东, 陈刚，等. 遗传算法的数字图像相关搜索法[J]. 光学精密工程，2007，15(10): 1634-1637. CHEN H, YE D,CHEN G, et al.. Digital image correlation search method based on genetic algorithm [J]. Opt. Precision Eng.,2007,15(10):1634-1637. (in Chinese)[5]李新忠, 岱钦, 王希军,等. 多尺度小波降噪的数字散斑相关搜索[J]. 光学精密工程，2007，15（1）: 58-62. LI X ZH,DAI Q,WANG X J, et al.. Digital speckle correlation method of multi-scale wavelet noise reduction [J]. Opt. Precision Eng.,2007,15（1）: 58-62. (in Chinese)[6]肖振中,徐爱珠，安顺泰,等. 用基于种子点的三维图像相关法测量连续大变形[J]. 光学精密工程，2011，19(9):2278-2282. XIAO ZH ZH, XU A ZH, AN SH T, et al.. Measurement of large deformation by digital image correlation method based on seed point[J]. Opt. Precision Eng.，2011，19(9): 2278-2282.(in Chinese)[7]于起峰．基于图像的精密测量与运动测量[M]．北京：科学出版社，2002.YU Q F．Precise Measurement and Motion Measurement Based on Image[M]．Beijing：Science Press，2002.(in Chinese)[8]BRUCK H A，MCNEIL S R，SUTTON M A，et al.．Digital image correlation using Newton-Raphson method of partial differential correction [J]. Experimental Mechanics，1989,29(3):261-267.[9]WANG H W, KANG Y L．Improved digital speckle correlation method and its application in fracture analysis of metallic foil[J]. Opt. Eng.,2002,41(11): 2793-2798.[10]ZHOU P, GOODSON K E．Sub-pixel displacement and deformation gradient measurement using digital image／speckle correlation[J]．Opt. Eng.,2001,40(8):1613-1620.[11]潘兵,谢惠民，续伯钦,等. 数字图像相关中的亚像素位移定位算法进展[J]. 力学进展，2005，35(3): 345-351. PAN B, XIE H M, XU B Q, et al.. Development of sub-pixel displacements registration algorithms in digital image correlation [J]. Advances in Mechanics，2005，35(3): 345-351. (in Chinese)[12]PAN B, XIE H M, XU B Q, et al.. Performance of sub-pixel registration algorithms in digital image correlation [J]. Measurement Science and Technology, 2006,17(6):1615-1621.[13]潘兵，续伯钦，冯娟，等. 关于数字图像相关中曲面拟合法的几点讨论[J].实验力学，2005，20: 44-50. PAN B, XU B Q，FENG J, et al.. Sub-pixel registration using quadratic surface fitting in digital image correlation [J]. Journal of Experimental Mechanics，2005，20:44-50. (in Chinese)[14]宋学孟. 金属物理性能分析[M]. 北京: 机械工业出版社, 1981,76. SONG X M. Analysis on the Physical Properties of Metal [M]. Beijing：China Machine Press，1981,76. (in Chinese)[15]GUO R X, YAN F, XIA H T. Microstructure and properties of WCp/Cu layered functionally graded materials prepared by vacuum hot-pressed sintering [C]. Applied Materials and Electronics Engineering, 2012, Part1:47-50.[16]潘兵, 吴大方, 高镇同.基于数字图像相关方法的非接高温热变形测量系统[J].航空学报，2010，31(10): 1964-1965.PAN B, WU D F, GAO ZH T. A non-contact high-temperature deformation measuring system based on digital image correlation technique [J]. Acta Aeronautica et Astronautica Sinica，2010，31(10):1964-1965.(in Chinese)[17]丁鸿章.工程金属材料线膨胀系数的计算[J].浙江工业大学学报，2000，28(4): 358-366.DING H ZH. Calculation of linear expansion coefficient of metallic materials [J]. Journal of Zhejiang University of Technology，2000，28(4):358-366.

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