Image analysis for monitoring of crack growth in hydropower concrete structures

DSpace Repository

Image analysis for monitoring of crack growth in hydropower concrete structures

Show full item record

Files for download

Find Full text There are no files associated with this item..

Facebook

Simple item record

Publication Article, peer reviewed scientific
Title Image analysis for monitoring of crack growth in hydropower concrete structures
Author(s) Bernstoen, Christian ; Heyden, Anders
Date 2009
English abstract
A digital image analysis technique for crack monitoring using a standard web-camera has been further developed to acquire continuous data sets on crack development in concrete dams. The method is based on an existing robust and straightforward non-contact method for experimental deformation analysis. It allows for the measurement of suspected serious cracks, identified from inspections, through a sequence of images captured at intervals. The crack opening displacements at the surface of investigated objects are obtained by an algorithm that makes it possible to automatically track the motions of discrete markers painted on the object surface markers and compute their centre of mass in a sequence of images. The data acquisition process is straightforward and is well suited for this type of environment. Results from laboratory experiments and a field-test on a commuter bridge in Sweden are presented. The study implies that the technique can be useful for hydropower concrete structure applications.
DOI http://dx.doi.org/10.1016/j.measurement.2009.01.007 (link to publisher's fulltext)
Host/Issue Measurement;6
Volume 42
ISSN 0263-2241
Pages 878-893
Language eng (iso)
Subject(s) Image analysis
Crack growth
Concrete structures
Dam
Monitoring
Technology
Research Subject Categories::TECHNOLOGY::Materials science
Handle http://hdl.handle.net/2043/10058 (link to this page)

This item appears in the following Collection(s)

Show full item record

Search


Browse

My Account

Statistics