Investigating the accuracy of digital image correlation in monitoring strain fields across historical tapestries

Chemistry

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https://doi.org/10.1111/str.12401
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Keywords

Mechanical Engineering, Mechanics of Materials

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Investigating the accuracy of digital image correlation in monitoring strain fields across historical tapestries. / Nwanoro, Kenneth; Harrison, Philip; Lennard, Frances.
In: Strain, Vol. 58, No. 1, e12401, 28.05.2022.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{647ca404ae044a98a5cd59b0c9973f86,

title = "Investigating the accuracy of digital image correlation in monitoring strain fields across historical tapestries",

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.",

keywords = "Mechanical Engineering, Mechanics of Materials",

author = "Kenneth Nwanoro and Philip Harrison and Frances Lennard",

year = "2022",

month = may,

day = "28",

doi = "10.1111/str.12401",

language = "English",

volume = "58",

journal = "Strain",

issn = "0039-2103",

publisher = "Wiley-Blackwell",

number = "1",

}

RIS

TY - JOUR

T1 - Investigating the accuracy of digital image correlation in monitoring strain fields across historical tapestries

AU - Nwanoro, Kenneth

AU - Harrison, Philip

AU - Lennard, Frances

PY - 2022/5/28

Y1 - 2022/5/28

N2 - 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.

AB - 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.

KW - Mechanical Engineering

KW - Mechanics of Materials

U2 - 10.1111/str.12401

DO - 10.1111/str.12401

M3 - Journal article

VL - 58

JO - Strain

JF - Strain

SN - 0039-2103

IS - 1

M1 - e12401

ER -

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