A study on microcrack monitoring in concrete: discrete element method simulations of acoustic emission for non-destructive diagnostics

Rucka, Magdalena; Knak, Magdalena; Nitka, Michał

doi:10.1016/j.engfracmech.2023.109718

Engineering Fracture Mechanics

2023

DOI: 10.1016/j.engfracmech.2023.109718

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A study on microcrack monitoring in concrete: discrete element method simulations of acoustic emission for non-destructive diagnostics

Magdalena Rucka,

Magdalena Knak,

Michał Nitka

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2024

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Cited by 2 publications

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Static and dynamic concrete calculations: Breakable aggregates in DEM model

Nitka

2024

Journal of Building Engineering

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Static and dynamic concrete calculations: Breakable aggregates in DEM model

Nitka

2024

Journal of Building Engineering

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Rate‐dependent mechanical properties and acoustic emission characteristic of recycled aggregate concrete under four‐point bending

Ma,

Wang,

Yang

et al. 2024

Fatigue Fract Eng Mat Struct

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The application of recycled aggregate is crucial for waste concrete recycling, while the loading rate significantly influences the fracture behavior of recycled aggregate concrete. Herein, we investigate the effect of loading rate on the flexural and fracture behaviors of recycled aggregate concrete, along with associated acoustic emission characteristics. Results show that the flexural strength and energy absorption capacity maximum increase by 15.18% and 38.39%, respectively, as the loading rate rises. As the loading rate increases from 0.05 to 1 mm/min, peak frequency is primarily clustered in 0 ~ 75 kHz and 75 ~ 225 kHz and tends to be dense, while the b value decreases by 19.28%, 23.30%, and 30.17%, respectively. Additionally, the proportion of shear failure also decreases, which relates to the high energy release rate. Further, the multifractal spectrum α − f(α) resembles a quadratic distribution, with both multifractal intensity ∆f and spectrum width ∆α showing a downward trend as the loading rate rises.

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A study on microcrack monitoring in concrete: discrete element method simulations of acoustic emission for non-destructive diagnostics

Cited by 2 publications

References 41 publications

Static and dynamic concrete calculations: Breakable aggregates in DEM model

Static and dynamic concrete calculations: Breakable aggregates in DEM model

Rate‐dependent mechanical properties and acoustic emission characteristic of recycled aggregate concrete under four‐point bending

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