The Development and Latest Applications of Digital Image Correlation in Stress and Strain Measurement

doi:10.7517/j.issn.1674-0475.2017.02.193

Abstract

Abstract:

In the area of modern materials stress and strain measurement, DIC(digital image correlation) has the advantages of non-contact, full field, low requirement of experimental conditions and high precision. It is an effective and practical method of stress and strain measurement, which is widely used in experimental mechanics and other fields. In this paper, the development of DIC in materials stress and strain is summaried and DIC is compared with other measurement techniques. Then, the system structure, related algorithms and search methods of DIC are introduced. Finally, the latest applications and new products of DIC in stress and strain of materials are listed.

Key words: digital image correlation, sub-pixel matching, correlation algorithm, strain measurement

ZHANG Shunqing, GAO Chenjia, ZHANG Long. The Development and Latest Applications of Digital Image Correlation in Stress and Strain Measurement[J]. Imaging Science and Photochemistry, 2017, 35(2): 193-198.

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