数字体图像相关方法研究进展
发布时间:2018-08-06 09:45
【摘要】:数字体图像相关方法是可测量物体内部三维全场变形的先进实验力学方法.通过匹配由数字体成像设备获取的被测物体变形前后的两组数字体图像,该方法能够获得物体内部亚体素精度的三维位移场和全场应变.得益于新型体成像设备的不断涌现、图像配准算法的持续改进以及高性能并行计算技术的快速发展,数字体图像相关方法已在生物医学、固体力学、岩土力学、材料科学等领域获得许多令人瞩目的重要应用.本文对过去20多年数字体图像相关方法中出现的各种位移和应变测量算法进行了系统回顾和评述,分析了该方法当前的局限和所面临的挑战.可以预期,数字体图像方法在实验力学领域中将扮演更为重要的角色,并有望在更多科研和工程领域中获得应用.
[Abstract]:The digital volume image correlation method is an advanced experimental mechanical method for measuring the three-dimensional full-field deformation of an object. By matching two sets of digital volume images before and after deformation of the measured object obtained by digital volume imaging equipment, this method can obtain the three-dimensional displacement field and full-field strain of the subelement accuracy of the object. Thanks to the continuous emergence of new volume imaging equipment, the continuous improvement of image registration algorithm and the rapid development of high performance parallel computing technology, digital volume image correlation methods have been applied in biomedicine, solid mechanics, geotechnical mechanics. Many important applications have been obtained in the field of material science and so on. In this paper, various displacement and strain measurement algorithms used in digital volume image correlation methods in the past 20 years are reviewed and reviewed systematically, and the present limitations and challenges of this method are analyzed. It can be expected that the digital volume image method will play a more important role in the field of experimental mechanics and will be expected to be applied in more scientific research and engineering fields.
【作者单位】: 北京航空航天大学固体力学研究所;
【基金】:国家自然科学基金(11002012,11272032,11427802) 国家科学基金优秀青年科学基金(11322220) 北京市科技新星计划(xx2014B034) 中央高校基本科研业务费专项资助
【分类号】:O348.1
本文编号:2167342
[Abstract]:The digital volume image correlation method is an advanced experimental mechanical method for measuring the three-dimensional full-field deformation of an object. By matching two sets of digital volume images before and after deformation of the measured object obtained by digital volume imaging equipment, this method can obtain the three-dimensional displacement field and full-field strain of the subelement accuracy of the object. Thanks to the continuous emergence of new volume imaging equipment, the continuous improvement of image registration algorithm and the rapid development of high performance parallel computing technology, digital volume image correlation methods have been applied in biomedicine, solid mechanics, geotechnical mechanics. Many important applications have been obtained in the field of material science and so on. In this paper, various displacement and strain measurement algorithms used in digital volume image correlation methods in the past 20 years are reviewed and reviewed systematically, and the present limitations and challenges of this method are analyzed. It can be expected that the digital volume image method will play a more important role in the field of experimental mechanics and will be expected to be applied in more scientific research and engineering fields.
【作者单位】: 北京航空航天大学固体力学研究所;
【基金】:国家自然科学基金(11002012,11272032,11427802) 国家科学基金优秀青年科学基金(11322220) 北京市科技新星计划(xx2014B034) 中央高校基本科研业务费专项资助
【分类号】:O348.1
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