Analysis of crack growth behavior in a double cantilever beam adhesive fracture test by different digital image processing techniques

Double cantilever beam (DCB) tests are common experiments in the field of adhesive fracture mechanics. During such an experiment, both the load and the crack length have to be monitored. Digital image processing techniques offer interesting possibilities in various fields of science. Automated analy...

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Bibliographic Details
Published in:Materialwissenschaft und Werkstofftechnik 2011-05, Vol.42 (5), p.452-459
Main Authors: Richter-Trummer, V., Marques, E.A., Chaves, F.J.P., Tavares, J.M.R.S., da Silva, L.F.M., de Castro, P.M.S.T.
Format: Article
Language:English
Subjects:
Adhesives
Automated
Automated crack growth analysis
Automatische Rissfortschrittsanalyse
Bildfilter
Bildschwellenwert
Bildsubtraktion
Cantilever beams
Crack propagation
crack tip detection
Digital
digital image processing
digitale Bildanalyse
Doppelbalken-Bruchtest
double cantilever beam (DCB) fracture test
Ermittlung der Rissspitze
Fracture mechanics
image filter
Image processing
image subtraction
image thresholding
optical flow
optischer Fluss
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Summary:Double cantilever beam (DCB) tests are common experiments in the field of adhesive fracture mechanics. During such an experiment, both the load and the crack length have to be monitored. Digital image processing techniques offer interesting possibilities in various fields of science. Automated analyses may significantly reduce the necessary manpower for certain cumbersome tasks. The analysis of large series of images may be done in less time, since automated image processing techniques are able to work efficiently and with constant quality 24 h per day. In this work, a series of images obtained by a high‐speed camera is analyzed in order to determine the crack growth behavior during a DCB test. The present work represents a contribution to the effort of automating the crack growth measurement, by proposing and comparing different automated techniques.
ISSN:0933-5137
1521-4052
1521-4052
DOI:10.1002/mawe.201100807