Article (Scientific journals)
Numerical assessment of concrete damage: procedures and pitfalls
Stroeven, Piet; He, Huan
2011In Heron, 56 (3), p. 123-140
Peer reviewed
 

Files


Full Text
Heron final-.pdf
Author preprint (587.83 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Computers; concrete; damage; digitization; multi-stage sampling; quantitative image analysis
Abstract :
[en] The paper focuses on the quality of predicting the damage characteristics of the loaded engineering structure by subjecting section images of cores supposedly drawn from the concrete of the structure to quantitative image analysis by sweeping test lines. Automation of this data acquisition stage is shown, generally leading to information that is biased to an unknown degree. This is accomplished mathematically and graphically according to Underwood. When the Stroeven/Saltikov (S/S)-concept of a partially linear-planar model for damage is accepted and (four-connexity) digitization is accomplished in a direction adjusted to the prevailing orientation direction of the cracks, the paper shows that orthogonal observations in vertical sections are sufficient for the unbiased assessment of total crack length per unit of area (2D), or specific crack surface area (3D), also when digitized images are employed. This is possible in situations where (uniaxial) compressive or tensile stresses dominate. The crack orientation distribution is however always biased when determined on digitized images in an automated set up when pixel directions are not compensated for, such as by the quantified S/S-concept of damage.
Disciplines :
Civil engineering
Author, co-author :
Stroeven, Piet;  Delft University of Technology
He, Huan ;  Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil
Language :
English
Title :
Numerical assessment of concrete damage: procedures and pitfalls
Publication date :
September 2011
Journal title :
Heron
ISSN :
0046-7316
eISSN :
1574-4078
Publisher :
Stevin-Laboratory of the Department of Civil Engineering, Delft University of Technology, Delft, Netherlands
Volume :
56
Issue :
3
Pages :
123-140
Peer reviewed :
Peer reviewed
Available on ORBi :
since 04 November 2011

Statistics


Number of views
52 (5 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
2
Scopus citations®
without self-citations
0

Bibliography


Similar publications



Contact ORBi