Journal ArticleDOI
An experimental study on acoustic emission energy as a quantitative measure of size independent specific fracture energy of concrete beams
TLDR
In this article, the authors used acoustic emissions (AE) as a quantitative measure of size independent specific fracture energy of concrete beams and the concepts of boundary effect and local fracture energy were used to obtain size independent AE energy from which size independent fracture energy was obtained.About:
This article is published in Construction and Building Materials.The article was published on 2011-05-01. It has received 58 citations till now. The article focuses on the topics: Acoustic emission & Fracture mechanics.read more
Citations
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Journal ArticleDOI
An experimental study on cracking evolution in concrete and cement mortar by the b-value analysis of acoustic emission technique
TL;DR: In this paper, an Amplitude distribution analysis of acoustic emissions (AE) released during concrete fracture was carried out to study the development of fracture process in concrete and mortar specimens and the slope of the log-linear frequency-amplitude distribution of AE is known as the AE based b-value.
Journal ArticleDOI
A review on concrete fracture energy and effective parameters
TL;DR: An overview of the available approaches in determining the fracture energy of concrete and effective parameters is presented and includes experimental methods which form the basis for measuring the fracture energies obtained from work of fracture and size effect models and thus provides a comparison between different models.
Journal ArticleDOI
Fracture process zone in notched concrete beam under three-point bending by acoustic emission
TL;DR: In this article, a SiGMA (simplified Green's functions for moment tensor analysis) procedure was applied to analyze acoustic emission (AE) signals in notched concrete beams under three-point bending.
Journal ArticleDOI
Studying the dynamic damage failure of concrete based on acoustic emission
TL;DR: In this paper, the uniaxial compression test of concrete was carried out based on acoustic emission (AE) in order to monitor the dynamic damage of concrete in real time and study the failure mechanism.
Journal ArticleDOI
Acoustic emission energy b-value for local damage evaluation in reinforced concrete structures subjected to seismic loadings
Francisco Sagasta,Miguel E. Zitto,Rosa Piotrkowski,Rosa Piotrkowski,Amadeo Benavent-Climent,Elisabet Suarez,Antolino Gallego +6 more
TL;DR: In this article, a modification of the original b-value (Gutenberg-Richter parameter) is proposed to evaluate local damage of reinforced concrete structures subjected to dynamical loads via the acoustic emission (AE) method.
References
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Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Journal ArticleDOI
Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Book
Fracture and Size Effect in Concrete and Other Quasibrittle Materials
Zdeněk P. Bažant,Jaime Planas +1 more
TL;DR: In this paper, the authors used the Weibull-type approach to measure the effect of size effect on structural strength of a crack and its size effect in terms of the number of cracks and the size of the cracks.
BookDOI
Acoustic Emission Testing
Christian Grosse,Masayasu Ohtsu +1 more
TL;DR: Ohtsu and Grosse as discussed by the authors proposed a signal-based analysis method for source localization and moment-tensor analysis for constructing superstructures, and applied it to concrete and rock structures.