Journal
EXPERIMENTAL MECHANICS
Volume 56, Issue 7, Pages 1231-1242Publisher
SPRINGER
DOI: 10.1007/s11340-016-0158-x
Keywords
Calibration; DIC; Finite element discretization; Photogrammetry; Stereocorrelation
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A mesh-based framework is developed by extending global stereocorrelation techniques to faceted surfaces with three-noded elements. A two-step self-calibration procedure is followed to determine the projection matrices of the stereo-rig and to update the nominal surface model to match the surface of interest. To prove the feasibility of mesh-based stereocorrelation, two different test parts are analyzed with the present techniques and compared to already validated optical procedures.
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