Acoustic emission for characterising the crack propagation in strain-hardening cement-based composites (SHCC)

Paul, Suvash Chandra; Pirskawetz, Stephan; Zijl, Gideon van; Schmidt, Wolfram

doi:10.1016/j.cemconres.2014.12.003

Cited by 75 publications

(25 citation statements)

References 17 publications

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“…Studies in [34] suggest that the frequency range [180-350] kHz is attributed to formation of micro cracks and macro cracks with a short duration of emissions, while in [35] it is argued that peak frequencies in the range [275-350] kHz are a typical signature of concrete cracking. Peak frequency analysis was also conducted in [36] where concrete beams were loaded in tension and flexure and the peak frequency values of acoustic emission waved were weighted. Two clusters of weighted peak frequencies due to cracking were registered: kHz and kHz.…”

Section: Introductionmentioning

confidence: 99%

Flexural cracking-induced acoustic emission peak frequency shift in railway prestressed concrete sleepers

Janeliukštis

Clark

Papaelias

et al. 2019

Engineering Structures

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Section: Introductionmentioning

confidence: 99%

Flexural cracking-induced acoustic emission peak frequency shift in railway prestressed concrete sleepers

Janeliukštis

Clark

Papaelias

et al. 2019

Engineering Structures

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“…The mechanical behavior of such materials is highly dependent on failure mechanisms on micro-level and their differentiation from other macro-fracture processes might be difficult. The only AE study on SHCC known by the authors is a recent publication by Paul et al [18] in which AE recordings accompanying tensile and bending tests on SHCC prisms and beams were presented. It was possible to differentiate matrix cracking from fiber pullout based on the weighted peak frequencies of the generated waveforms.…”

Section: Introductionmentioning

confidence: 99%

Characterizing the crack development in strain-hardening cement-based composites (SHCC) by means of acoustic emission

Curosu¹,

Pirskawetz²,

Mechtcherine³

2016

Proceedings of the 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures

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The article at hand presents an investigation on crack development in three different types of strain-hardening cement-based composites (SHCC) subjected to uni-axial tensile loading. The aim of the work was to evaluate the applicability of acoustic emission (AE) measurements for determining the progressive damage within the material, as well as for differentiating the individual damage events by their origin and decisive mechanisms, such as matrix cracking, fiber pullout or fiber rupture. The acoustic emission method proved to be fully appropriate for recording and evaluating the fracture related processes in various types of SHCC. Valuable information on failure mechanisms and quantitative description of damage depending on SHCC composition was obtained and evaluated with respect to the measured stress-displacement curves and under consideration of fracture surfaces and crack patterns observed on the specimens.

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“…Dautriat et al and Munoz et al used DIC to study the damage behavior of rock under uniaxial compression. Some scholars studied the tensile and bending damage of strain‐hardening cement‐based composites (SHCC) by means of acoustic emission and DIC, and characterized its failure mechanism. Alam et al studied the surface displacement and internal damage of reinforced concrete beams.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on direct tension behavior of concrete through combined digital image correlation and acoustic emission techniques

Guo

Chen

Yang

et al. 2019

Structural Concrete

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In order to investigate the fracture behavior of plain concrete under tensile load, uniaxial tensile test of plain concrete cylinder is carried out in this paper. Acoustic emission (AE) and 3D digital image correlation (3D DIC) are used to measure the internal acoustic emission signal and the surface deformation characteristics of the specimen. Before the tensile stress comes close to the peak, there is very little acoustic emission signal inside the specimen. When the tensile stress reaches the peak, the acoustic emission signal inside the specimen begins to increase dramatically, and the number of microcracks on the surface of the specimen increases and the crack width expands gradually. The experimental results are as follows: Acoustic emission can monitor the internal fracture damage of the specimen. The microcracks and macrocracks on the surface of the specimen can be monitored sensitively by 3D DIC. And the test results of the two methods are basically consistent and complementary. These results can provide some reference for the research of plain concrete under tensile load.

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Acoustic emission for characterising the crack propagation in strain-hardening cement-based composites (SHCC)

Cited by 75 publications

References 17 publications

Flexural cracking-induced acoustic emission peak frequency shift in railway prestressed concrete sleepers

Flexural cracking-induced acoustic emission peak frequency shift in railway prestressed concrete sleepers

Characterizing the crack development in strain-hardening cement-based composites (SHCC) by means of acoustic emission

Experimental study on direct tension behavior of concrete through combined digital image correlation and acoustic emission techniques

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