Nwanoro, K., Harrison, P. and Lennard, F. (2022) Investigating the accuracy of digital image correlation in monitoring strain fields across historical tapestries. Strain, 58(1), e12401. (doi: 10.1111/str.12401)
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Abstract
Finite element generated synthetic image deformation is used to assess factors affecting the reliability and accuracy of strain fields measured by the DIC technique, when using the inherent historical tapestry image to track deformations. Compared with direct correlation with the reference image, incremental correlation is found to introduce accumulated error and is less suitable for DIC analysis under low strains. Image quality, for example, variation in resolution, is demonstrated to strongly affect DIC performance. Finally, it is recommended that an iterative approach is required to determine the optimum subset and strain filter size for effective DIC analysis using inherent tapestry patterns, especially at low strain levels.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Harrison, Dr Philip and Nwanoro, Mr Kenneth and Lennard, Professor Frances |
| Authors: | Nwanoro, K., Harrison, P., and Lennard, F. |
| College/School: | College of Arts & Humanities > School of Culture and Creative Arts College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Strain |
| Publisher: | Wiley |
| ISSN: | 0039-2103 |
| ISSN (Online): | 1475-1305 |
| Published Online: | 13 September 2021 |
| Copyright Holders: | Copyright © 2021 John Wiley and Sons Ltd |
| First Published: | First published in Strain 58(1): e12401 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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