Bidimensional strain measurement using digital images-Reference-Cited by-同舟云学术

Bidimensional strain measurement using digital images

Published:1999-08-01 Issue:8 Volume:213 Page:811-817
ISSN:0954-4062
Container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Author:

Vacher P¹,Dumoulin S¹,Morestin F²,Mguil-Touchal S²

Affiliation:

1. ESIA Laboratoire de Mécanique Appliquée Annecy, France

2. Laboratoire de Mécanique des Solides INSA de Lyon, Villeurbanne, France

Abstract

This paper proposes a method that allows a strain field on plane samples to be determined using the digital image correlation method. The displacement field is approximated by an iterative process attempting to optimize the correlation between two pictures, the first one before strain and the second one after strain. The precision obtained on the displacement field can be better than 0.01 pixel. This precision makes it possible to calculate the strains in a large range, from elastic strains (>0.01 per cent) to large strains (>200 per cent), with or without a strain gradient.

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/0954406991522428

Reference4 articles.

1. Optimal image correlation in experimental mechanics

2. Physique et mécanique de la mise en forme des métaux. In Proceedings of Ecole d'été d'Oléron, 1990, pp. 24–35 (Presse du CNRS IRSID).

3. Optimal image correlation in experimental mechanics

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