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A Low-Cost and Simplified Digital Image Correlation Software Package for Use in Undergraduate Teaching Laboratories

[+] Author Affiliations
Fritz Hieb, Michael Hargather

New Mexico Tech, Socorro, NM

Paper No. IMECE2016-67620, pp. V005T06A050; 6 pages
doi:10.1115/IMECE2016-67620
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 5: Education and Globalization
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5057-2
  • Copyright © 2016 by ASME

abstract

Digital image correlation (DIC) has become an industry staple quickly replacing classic techniques. High-speed images are taken of a material sample being deformed, then algorithms applied to calculate variables of sample deformation such as stress, strain, displacement and displacement velocity. Currently, the analysis technology is not available at the level of simplicity and accessibility needed to teach the methods in an undergraduate laboratory. This project aims to develop a single program to perform DIC that is simple to use, accurate, and available at low cost. This paper describes the state of current DIC algorithm research, drawbacks of available technologies, the development cycle of the software including the techniques used to obtain the necessary accuracy and performance, and a demonstration of the DIC functionality in comparison to results obtained from commercial software.

Copyright © 2016 by ASME

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