Abstract
In this study, a three-step object was moved in-plan to different positions and determined the displacement by 3D DIC method. To monitor the out-of-plane displacement of the object during movement, a laser triangulation method was performed together with a typical 3D DIC. The laser triangulation setup consists of a laser source with a cylindrical lens mounted on the center of the camera-pair to generate a line pattern and then the discontinuous line patterns were then recorded by left- and right- cameras for step-height calculation. The measurement results reveal that there is displacement deviation introduced by viewing angle between camera and the object as the object is positioned at different locations. The experiment also shows that the deviation of 3D DIC determined in-plane displacement is small but the determined displacement is higher than the nominal displacement determined by a precision stage; in addition, out-of-plane displacements have been reported and cannot be ignored. In the final, a single camera model based on geometrical parameters of 3D DIC is proposed to correct the 3D DIC determined displacements; according to current results, the in-plane displacement of the 3-steps object can be tremendously reduced from 9.7% to 1.7%.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Sutton, M.A., Yan, J.H., Tiwari, V., Schreier, H.W., Orteu, J.J.: The effect of out-of-plane motion on 2D and 3D digital image correlation measurements. Opt. Lasers Eng. 46(10), 746–757 (2008)
Haddadi, H., Belhabib, S.: Use of rigid-body motion for the investigation and estimation of the measurement errors related to digital image correlation technique. Opt. Lasers Eng. 46(2), 185–196 (2008)
Lava, P., Coppieters, S., Wang, Y., Houtte, P., Van Debruyne, D.: Error estimation in measuring strain fields with DIC on planar sheet metal specimens with a non-perpendicular camera alignment. Opt. Lasers Eng. 49(1), 57–65 (2011)
Gao, Y., Cheng, T., Su, Y., Xu, X., Zhang, Y., Zhang, Q.: High-efficiency and high-accuracy digital image correlation for three-dimensional measurement. Opt. Lasers Eng. 65, 78–80 (2015)
Sutton, M.A., Orteu, J.-J., Schreier, H.: Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts, Theory and Applications. Springer, New York (2009)
Acknowledgements
The study is performed thanks to the financial support provided by the Ministry of Science and Technology of Taiwan, R.O.C. (Grant No. NSC-102-2221-E-492-014 and MOST-103-2221-E-492-017) is greatly appreciated.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Hwang, CH., Wang, S.H., Wang, WC. (2018). On the In-Plane Displacement Measurement by 3D Digital Image Correlation Method. In: Lamberti, L., Lin, MT., Furlong, C., Sciammarella, C. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-63028-1_4
Download citation
DOI: https://doi.org/10.1007/978-3-319-63028-1_4
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-63027-4
Online ISBN: 978-3-319-63028-1
eBook Packages: EngineeringEngineering (R0)