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Assessing the feasibility of monitoring strain in historical tapestries using Digital Image Correlation

Assessing the feasibility of monitoring strain in historical tapestries using Digital Image Correlation
Assessing the feasibility of monitoring strain in historical tapestries using Digital Image Correlation
Digital image correlation (DIC) is used to monitor strain in a representative textile material and an historic tapestry. The validity of a ‘map function’ that allows 3D DIC displacement measurements to be obtained when the reference data are collected with a camera set-up different from that of the deformed data is assessed. An experiment was devised to study the effects of DIC processing parameters (interrogation cell size and overlap) on strain measurements, and to investigate if the textile contains adequate contrast for DIC to operate. The study shows that the textile’s weave pattern can be used as the device for correlation. Long-term tests for monitoring creep strain using DIC both in the laboratory and in situ are presented. The results show good correspondence between strain changes in the tapestry and relative humidity.
digital image correlation, relative humidity, tapestry
1475-1305
19-32
Khennouf, D.
57f8ecf3-a13f-4cb5-8350-178b82d21134
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Chambers, A.R.
74fa9b7e-6362-478e-a038-15f2828c5446
Lennard, F.J.
ed977f86-b30c-4b35-974a-e90777ead294
Eastop, D.D.
c4825cd3-784e-4035-9be9-958f0a60b5f0
Khennouf, D.
57f8ecf3-a13f-4cb5-8350-178b82d21134
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Chambers, A.R.
74fa9b7e-6362-478e-a038-15f2828c5446
Lennard, F.J.
ed977f86-b30c-4b35-974a-e90777ead294
Eastop, D.D.
c4825cd3-784e-4035-9be9-958f0a60b5f0

Khennouf, D., Dulieu-Barton, J.M., Chambers, A.R., Lennard, F.J. and Eastop, D.D. (2010) Assessing the feasibility of monitoring strain in historical tapestries using Digital Image Correlation. Strain, 46 (1), 19-32. (doi:10.1111/j.1475-1305.2009.00637.x).

Record type: Article

Abstract

Digital image correlation (DIC) is used to monitor strain in a representative textile material and an historic tapestry. The validity of a ‘map function’ that allows 3D DIC displacement measurements to be obtained when the reference data are collected with a camera set-up different from that of the deformed data is assessed. An experiment was devised to study the effects of DIC processing parameters (interrogation cell size and overlap) on strain measurements, and to investigate if the textile contains adequate contrast for DIC to operate. The study shows that the textile’s weave pattern can be used as the device for correlation. Long-term tests for monitoring creep strain using DIC both in the laboratory and in situ are presented. The results show good correspondence between strain changes in the tapestry and relative humidity.

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Published date: 1 January 2010
Keywords: digital image correlation, relative humidity, tapestry
Organisations: Winchester School of Art, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 68668
URI: https://eprints.soton.ac.uk/id/eprint/68668
ISSN: 1475-1305
PURE UUID: 4c97cbef-2164-43ae-90ab-32741492c036

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Date deposited: 14 Sep 2009
Last modified: 04 Nov 2019 21:08

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Contributors

Author: D. Khennouf
Author: A.R. Chambers
Author: F.J. Lennard
Author: D.D. Eastop

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