A parametric study of DIC measurement uncertainties of cracked metals

Tim Wigger; Colin Lupton; Jie Tong

doi:10.1111/str.12291

A parametric study of DIC measurement uncertainties of cracked metals

Tim Wigger, Colin Lupton, Jie Tong

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Abstract

Displacements and strains in the presence of a crack in welded steels have been studied using digital image correlation (DIC) under zero load and selected loading conditions. A parametric study has been carried out to assess the effects of some of the key parameters, including subset size, step size, and the size of the measurement window, on the measurement uncertainties for systematic and random errors. The assessments were carried out a region around the crack tip, where high strain gradients and inhomogeneous deformation present significant challenges for DIC measurements.

Original language	English
Journal	Strain
Early online date	13 Jul 2018
DOIs	https://doi.org/10.1111/str.12291
Publication status	Early online - 13 Jul 2018

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10.1111/str.12291

A parametric study of DIC measurement uncertainties of cracked metals
This is the peer reviewed version of the following article: Wigger T, Lupton C, Tong J. A parametric study of DIC measurement uncertainties on cracked metals. Strain. 2018; e12291, which has been published in final form at https://doi.org/10.1111/str.12291. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Accepted author manuscript (Post-print), 6.89 MB

https://onlinelibrary.wiley.com/doi/abs/10.1111/str.12291

Data availability statement for 'A parametric study of DIC measurement uncertainties of cracked metals'.
Wigger, T. (Creator), Lupton, C. (Creator) & Tong, J. (Creator), Wiley Online Library, 13 Jul 2018
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A parametric study of DIC measurement uncertainties of cracked metals

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