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模型位移场的散斑互相关法测量技术研究及应用
引用本文:白义如,白世伟,冯传玉.模型位移场的散斑互相关法测量技术研究及应用[J].岩土力学,2004,25(6):995-998.
作者姓名:白义如  白世伟  冯传玉
作者单位:1. 湛江海洋大学,工程学院,广东,湛江,524088
2. 中国科学院武汉岩土力学研究所,湖北,武汉,430071
3. 中国科学技术大学,力学与机械工程系,安徽,合肥,230027
摘    要:白光散斑可以测量大物体大变形,而相关技术要求的散斑场是广义散斑场;所以笔者采用的散斑为白光散斑,位移信息的提取采用相关技术。首先,在模型表面人为地制作白光散斑场,提出了一种在模型试验表面制斑的方法。又改进了散斑相关程序。最后,用白光散斑进行模型试验,表明这种测试技术在节理不发育的条件下是可行的。

关 键 词:散斑  互相法  模型试验  程序
文章编号:1000-7598-(2004)06-0995-04
修稿时间:2002年7月31日

Study and application of speckle correlation measurement method for displacement fields of model
BAI Yi-ru,BAI Shi-wei,FENG Chuang-yu.Study and application of speckle correlation measurement method for displacement fields of model[J].Rock and Soil Mechanics,2004,25(6):995-998.
Authors:BAI Yi-ru  BAI Shi-wei  FENG Chuang-yu
Abstract:Large displacements of a big object can be measured with white speckles; but the correlation technique needs a generalized speckle field. So we use white speckle field and use the correlation method to pick up displacement informations. Firstly, white speckle field is made on the model, so a new method of making speckle on model is advanced in the article. Secondly, program of speckle correlation method is improved. Finally, the model test is carried out with white speckle; and it is proved that the measurement method is feasible in the condition of no joint development.
Keywords:speckle  correlation method  model test  program
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