THE USE OF DIGITAL IMAGE CORRELATION IN THE STUDY OF ACHILLES TENDON STRAIN FIELD

Authors

  • Krzysztof Holak AGH University of Science and Technology
  • Piotr Kohut AGH University of Science and Technology
  • Andrzej Młyniec AGH University of Science and Technology
  • Martyna Ekiert AGH University of Science and Technology
  • Krzysztof Tomaszewski Jagiellonian University Medical College
  • Tadeusz Uhl AGH University of Science and Technology

DOI:

https://doi.org/10.7494/mech.2015.34.1.19

Keywords:

measurement vision systems, digital image correlation, biomechanical measurements, human Achilles tendon

Abstract

The paper presents an application of vision-based measurement method in experimental mechanics of biological materials.  The displacement and strain fields of human Achilles tendon specimen under tensile test were computed using digital image correlation method. Different software applications, both commercial as well as open source ones, were compared. The performance of algorithms was tested based on a referential measurement, carried out by a commercial software with affine model of deformation implemented. The root mean square error of a difference between strain obtained using reference measurement and each of the analyzed programs was computed. Additionally,  an example of full field computation of displacement and strain field was presented.

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Published

2018-10-09

Issue

Vol. 34 No. 1 (2015)

Section

Articles

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