Dual-biprism-based single-camera high-speed 3D-digital image correlation for deformation measurement on sandwich structures under low velocity impact

Herein, a single-camera stereo digital image correlation (DIC) method is developed for dynamic deformation measurement, and a dual-biprism high-speed stereo camera system is proposed to capture surface images. Then, full-field displacement and strain distributions are obtained after correlation and...

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Bibliographic Details
Published inReviews on advanced materials science Vol. 62; no. 1; pp. id. 107659 - 114
Main Authors Zhang, Weiling, Xu, Mengqiao, Yuan, Tianyu, Li, Wenjing, Dai, Xiangjun, Zhang, Zhongwei, Yun, Hai, Wang, Yanxia
Format Journal Article
LanguageEnglish
Published De Gruyter 07.11.2023
Subjects
digital image correlation
dynamic measurement
single high-speed camera
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Summary:Herein, a single-camera stereo digital image correlation (DIC) method is developed for dynamic deformation measurement, and a dual-biprism high-speed stereo camera system is proposed to capture surface images. Then, full-field displacement and strain distributions are obtained after correlation and differential calculation using the stereo-DIC algorithm. After a typical experiment is performed to verify the accuracy of the proposed system, full-field displacement and strain distributions of sandwich panels subjected to low-velocity impacts are determined. These results show that the proposed system is an efficient and convenient tool for dynamic deformation measurement.
ISSN:1605-8127
1605-8127
DOI:10.1515/rams-2023-0136