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Proceedings Paper

Effect of out-of-plane specimen movement on the accuracy of the smallest specimen strain measurable using the digital image correlation technique
Author(s): Joel Poling; Niranjan Desai
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Paper Abstract

This investigation determined the smallest strain accurately measurable by a state-of-the-art digital image correlation (DIC) – based tool used in structural health monitoring, in a specimen subjected to out-of-plane movement, building upon a study that concluded that out-of-plane specimen movement results in noise in DIC-based strain measurements. This study was motivated by initially undetected damage at low strains in connections of a real-world bridge, whose detection would have prevented its propagation, resulting in lower repair costs. The smallest strains accurately measurable using the state-of-the-art DIC tool, over a range of specimen out-of-plane displacement amplitudes, were determined.

Paper Details

Date Published: 10 April 2017
PDF: 17 pages
Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 101702L (10 April 2017); doi: 10.1117/12.2258496
Show Author Affiliations
Joel Poling, Purdue Univ. Northwest (United States)
Niranjan Desai, Purdue Univ. Northwest (United States)

Published in SPIE Proceedings Vol. 10170:
Health Monitoring of Structural and Biological Systems 2017
Tribikram Kundu, Editor(s)

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