Corrosion mechanisms in reinforced concrete by acoustic emission

Kawasaki, Yuma; Wakuda, Tomoyo; Kobarai, Tomoe; Ohtsu, Masayasu

doi:10.1016/j.conbuildmat.2013.02.020

Cited by 132 publications

(66 citation statements)

References 6 publications

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“…Berdowski et al, 2013;Boominathan et al, 2014;Burks and Kumosa, 2014;Fu et al, 2014;Hamdi et al, 2013;Njuohvic et al, 2014;Sause et al, 2013), and concrete (e.g. ElBatanouny et al, 2014;Elfergani et al, 2013;Hu et al, 2013;Itturrioz et al, 2013;Kawasaki et al, 2013;Kencanawati et al, 2013;Ohno et al, 2014;Shahidan et al, 2013;Zhu et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

A new method to estimate location and slip of simulated rock failure events

2015

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Section: Introductionmentioning

confidence: 99%

A new method to estimate location and slip of simulated rock failure events

2015

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“…Piezoelectric sensors are mounted on the surface of the material or structure and record the motion of the surface under the elastic excitation of the cracking sources [1]. The rate and the characteristics of the received signals are strongly dependent on the damage process and enable the monitoring of fracture, corrosion, healing in cementitious materials [2][3][4], as well as crack propagation rate in metal plates [5,6]. Different fracture processes like for example concrete matrix cracking and debonding of external reinforcing patches, have a distinct AE signature enabling the characterization of the fracture stage in real time [7].…”

Section: Introductionmentioning

confidence: 99%

Influence of geometry on the fracturing behavior of textile reinforced cement monitored by acoustic emission

et al. 2014

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In this work the flexural behavior of textile reinforced cement (TRC) laminate is examined using acoustic emission (AE). The TRC composite is a combination of inorganic phosphate cement (IPC) with randomly distributed glass fibres. IPC has been developed at the "Vrije Universiteit Brussel" and shows a neutral pH meaning that glass fibers are hardly attacked. During bending, stresses lead to the activation of damage mechanisms like matrix cracking, delaminations and fiber pull-out being in succession or overlapping in time. AE records the responses of the damage propagation events and allows the monitoring of the fracture behavior from the onset to the final stage. The effect of the span in three-point bending tests, which is varied to create different stress fields, is targeted. Parameters like duration and frequency reveal information about the mode of the damage sources in relation to the span. Results show that as the span decreases, the dominant damage mode shifts away from bending and acquires more shear characteristics by increasing the interlaminar shearing events.

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“…With advantages such as sensitivity to geometry, integrity, and sensitivity to dynamic defects, AE monitoring techniques have been applied to monitor different types of corrosion. (30)(31)(32) However, most of the research is focused on the characteristics of AE sources. To the best of our knowledge, no papers or reports on the specific relationship between crack propagation and AE signals have been published.…”

Section: Introductionmentioning

confidence: 99%

Characteristic of Acoustic Emission Signal from Stress Corrosion Cracking in Low-Carbon Nitrogen-Enhanced Stainless Steel

2017

Sensors and Materials

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The problem of stress corrosion cracking (SCC), which causes sudden failure of metals subjected to stress in a high-temperature, high-pressure water environment, is studied. Acoustic emission (AE) monitoring is a promising method for detecting the initiation and propagation of SCC. In this study, pencil-lead breaks are used as AE signal sources to first validate the parameters for the verification of the finite element modeling of microcracking. Then, a simplified fracture propagation model of low-carbon nitrogen-enhanced (316LN) stainless steel is established on the basis of moment tensor theory. Finally, the inner connection between the energy release rate of the AE source and the morphological aspect of crack formation is analyzed. The results of modal analysis show that the amount of energy released by the growing crack is linearly proportional to crack depth. Moreover, their frequency characteristics are almost unchanged from the results of analysis by fast Fourier transform. Therefore, SCC initiation and propagation in 316LN stainless steel can be evaluated by this detection method. Moreover, this analysis method based on the energy release rate of the AE source can also be extended to almost all solid materials and structural crack detection.

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Corrosion mechanisms in reinforced concrete by acoustic emission

Cited by 132 publications

References 6 publications

A new method to estimate location and slip of simulated rock failure events

A new method to estimate location and slip of simulated rock failure events

Influence of geometry on the fracturing behavior of textile reinforced cement monitored by acoustic emission

Characteristic of Acoustic Emission Signal from Stress Corrosion Cracking in Low-Carbon Nitrogen-Enhanced Stainless Steel

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