A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study of phased array techniques for concrete inspection
The aim of that study is to characterize non destructively defects in deep concrete structures like wall containment of power nuclear plant. Several ultrasonic techniques have been developed and tested since the beginning of the study, in order to improve the detection of an artificial crack embedded in a concrete lab block. Early results have shown the great potential of the ultrasonics techniques. Application of phased array technique combined with an angular scanning and post acquisition reconstruction allow to improve performance of the detection in term of signal to noise ratios and sensibility by optimizing the transmitted energy. The post acquisition reconstruction provides full reconstructed images of the concrete structure and shows the profile of flaws. Modelization tools have also been developed in order to predict sensibility of UT methods in concrete. Two models of attenuation and prediction of the structural noise have been implemented in CIVA software in order to take into account the heterogeneous media and to simulate more realistically NDT control in concrete. Preliminary encouraging results have been presented.
Study of phased array techniques for concrete inspection
The aim of that study is to characterize non destructively defects in deep concrete structures like wall containment of power nuclear plant. Several ultrasonic techniques have been developed and tested since the beginning of the study, in order to improve the detection of an artificial crack embedded in a concrete lab block. Early results have shown the great potential of the ultrasonics techniques. Application of phased array technique combined with an angular scanning and post acquisition reconstruction allow to improve performance of the detection in term of signal to noise ratios and sensibility by optimizing the transmitted energy. The post acquisition reconstruction provides full reconstructed images of the concrete structure and shows the profile of flaws. Modelization tools have also been developed in order to predict sensibility of UT methods in concrete. Two models of attenuation and prediction of the structural noise have been implemented in CIVA software in order to take into account the heterogeneous media and to simulate more realistically NDT control in concrete. Preliminary encouraging results have been presented.
Study of phased array techniques for concrete inspection
Untersuchung der Gruppenstrahlertechnik zur Betonuntersuchung
Paris, O. (author) / Poidevin, C. (author) / Rambach, J.M. (author) / Nahas, G. (author)
2006
7 Seiten, 5 Bilder, 4 Quellen
Conference paper
Storage medium
English
Study of phased array techniques for cracks characterization in concrete structures
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