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Two-dimensional meshfree-based digital image correlation for strain-displacement measurement

At present, there are various image registration algorithms under active development for digital image correlation techniques. These techniques include the meshfree-based (MFree-based) digital image correlation. However, there exists very little study in advancing the method for better computational...

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Main Authors: Drahman, S. H., Zainal Abidin, A. R., Kueh, A. B. H.
Format: Article
Published: Springer Science and Business Media Deutschland GmbH 2022
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/103981/
http://dx.doi.org/10.1007/s40799-021-00476-y
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spelling my.utm.1039812024-01-09T00:39:28Z http://eprints.utm.my/103981/ Two-dimensional meshfree-based digital image correlation for strain-displacement measurement Drahman, S. H. Zainal Abidin, A. R. Kueh, A. B. H. TA Engineering (General). Civil engineering (General) At present, there are various image registration algorithms under active development for digital image correlation techniques. These techniques include the meshfree-based (MFree-based) digital image correlation. However, there exists very little study in advancing the method for better computational efficiency in engineering measurement applications. Also, a comparative investigation against the more well-known finite element-based digital image correlation is absent. This paper presents the development of an efficient two-dimensional (2D) MFree-based digital image correlation technique to obtain the strain and displacement of a planar object. In the present method, the speckle pattern in the form of circular adhesive markers is first detected and tracked by employing the Circular-Hough-Transform and Kanade-Lucas-Tomasi algorithms. The element-free Galerkin approach that specifically employs the moving least-square approximation has been adopted as the meshfree method for the strain and displacement determination. A series of tensile tests on pure epoxy samples has then been carried out to verify the applicability of the proposed 2D MFree-based digital image correlation technique, from which a good agreement of the strain and displacement description is found when compared with that obtained by the conventional strain gauge method. Furthermore, the full-field deformations computed from the ABAQUS model have been well captured by the proposed technique. This concludes that the proposed 2D MFree-based digital image correlation technique is greatly applicable and is recommended for use in determining the planar material engineering properties. Springer Science and Business Media Deutschland GmbH 2022 Article PeerReviewed Drahman, S. H. and Zainal Abidin, A. R. and Kueh, A. B. H. (2022) Two-dimensional meshfree-based digital image correlation for strain-displacement measurement. Experimental Techniques, 46 (2). pp. 273-286. ISSN 0732-8818 http://dx.doi.org/10.1007/s40799-021-00476-y DOI : 10.1007/s40799-021-00476-y
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Drahman, S. H.
Zainal Abidin, A. R.
Kueh, A. B. H.
Two-dimensional meshfree-based digital image correlation for strain-displacement measurement
description At present, there are various image registration algorithms under active development for digital image correlation techniques. These techniques include the meshfree-based (MFree-based) digital image correlation. However, there exists very little study in advancing the method for better computational efficiency in engineering measurement applications. Also, a comparative investigation against the more well-known finite element-based digital image correlation is absent. This paper presents the development of an efficient two-dimensional (2D) MFree-based digital image correlation technique to obtain the strain and displacement of a planar object. In the present method, the speckle pattern in the form of circular adhesive markers is first detected and tracked by employing the Circular-Hough-Transform and Kanade-Lucas-Tomasi algorithms. The element-free Galerkin approach that specifically employs the moving least-square approximation has been adopted as the meshfree method for the strain and displacement determination. A series of tensile tests on pure epoxy samples has then been carried out to verify the applicability of the proposed 2D MFree-based digital image correlation technique, from which a good agreement of the strain and displacement description is found when compared with that obtained by the conventional strain gauge method. Furthermore, the full-field deformations computed from the ABAQUS model have been well captured by the proposed technique. This concludes that the proposed 2D MFree-based digital image correlation technique is greatly applicable and is recommended for use in determining the planar material engineering properties.
format Article
author Drahman, S. H.
Zainal Abidin, A. R.
Kueh, A. B. H.
author_facet Drahman, S. H.
Zainal Abidin, A. R.
Kueh, A. B. H.
author_sort Drahman, S. H.
title Two-dimensional meshfree-based digital image correlation for strain-displacement measurement
title_short Two-dimensional meshfree-based digital image correlation for strain-displacement measurement
title_full Two-dimensional meshfree-based digital image correlation for strain-displacement measurement
title_fullStr Two-dimensional meshfree-based digital image correlation for strain-displacement measurement
title_full_unstemmed Two-dimensional meshfree-based digital image correlation for strain-displacement measurement
title_sort two-dimensional meshfree-based digital image correlation for strain-displacement measurement
publisher Springer Science and Business Media Deutschland GmbH
publishDate 2022
url http://eprints.utm.my/103981/
http://dx.doi.org/10.1007/s40799-021-00476-y
_version_ 1787582540930875392
score 13.211869

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