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Correction of the Spurious Strains and Displacements Caused by Out of Plane Movements in Digital Image Correlation (DIC) with a Single Camera

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Abstract

Digital image correlation (DIC) is a powerful experimental technique capable to measure the displacement field of a wide region through images. Also it’s scalable and can be applied to large structures, calculating the full strain field of a certain region. This potentiality is restricted by the spurious movements that insert noise in the measurements, reducing considerably the accuracy of the method and its applicability. This paper presents an algorithm capable to remove the effect of those spurious movements from a dataset, enhancing the accuracy of the technique. This is essential for the applicability of DIC to large structures where the spurious movement can’t be prevented and the deformations are very small due to the stiffness of the structures.

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Acknowledgements

The author wants to acknowledge the financial support given by the Secretariat of State for Research, development and innovation of the Spanish government under the Grant IJCI-2014-19362 associated to a Juan de la Cierva Incorporation Fellowship.

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  1. Institute Eduardo Torroja for Construction Sciences (CSIC), Madrid, Spain

    Luis Saucedo-Mora

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  1. Luis Saucedo-Mora
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Correspondence to Luis Saucedo-Mora.

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Saucedo-Mora, L. Correction of the Spurious Strains and Displacements Caused by Out of Plane Movements in Digital Image Correlation (DIC) with a Single Camera. J Nondestruct Eval 36, 50 (2017). https://doi.org/10.1007/s10921-017-0429-1

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  • DOI: https://doi.org/10.1007/s10921-017-0429-1

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