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Microcrack characterization in concrete under uniaxial tension
Li Z.
Source PublicationMagazine of Concrete Research
AbstractThe microcrack properties in concrete and low volume short fibre reinforced concrete under uniaxial tension have been characterized using an acoustic emission (AE) technique. To obtain overall information on microcracking, a newly developed test method is used to ensure stable measurement of post-peak response. The phenomena of microcracking localization are investigated by interpreting the locations of AE event sources. It is found that localization does exist and starts before peak load. The AE activities are further investigated using a quantitative analysis technique. The 2-D moment tensor representation of each event, assumed to be a point source, is deduced. By interpreting the behaviour of the dipole forces, the orientation, and the movement of microcracks are inferred. The results show that the behaviour of a microcrack might be different from the behaviour of a macroscopic crack.
URLView the original
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Document TypeJournal article
CollectionUniversity of Macau
AffiliationHong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Li Z.. Microcrack characterization in concrete under uniaxial tension[J]. Magazine of Concrete Research,1996,48(3):219-228.
APA Li Z..(1996).Microcrack characterization in concrete under uniaxial tension.Magazine of Concrete Research,48(3),219-228.
MLA Li Z.."Microcrack characterization in concrete under uniaxial tension".Magazine of Concrete Research 48.3(1996):219-228.
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