Relationship between electromagnetic and acoustic emissions in deformed piezoelectric media: Microcracking signals

Mastrogiannis, D.; Antsygina, T. N.; Chishko, K. A.; Mavromatou, C.; Hadjicontis, V.

doi:10.1016/j.ijsolstr.2014.11.027

Cited by 26 publications

(8 citation statements)

References 18 publications

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“…They have also provided the mathematical description of this electroacoustical phenomenon. Figure 9 shows the typical signal shapes obtained during the experiments [101]. Dexing et al (2018) have tested coal, rock and PMMA samples under compression, and resulting acoustic and electromagnetic emissions were detected, and theoretical analysis was also considered.…”

Section: Rocks and Brittle Materialsmentioning

confidence: 99%

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A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

2020

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Development of the deformation monitoring techniques for the infrastructures so as to avoid catastrophic failure and resulting economic/human loss has remained a key interest of scientists and engineers. Among various deformation monitoring techniques utilized and explored by groups of researchers, electromagnetic radiation detection is one of the intriguing techniques which has remained popular in researchers’ community till today. Almost every type of material is being explored and studied by researchers for the electromagnetic emissions when subjected to external loading and/or failure. Experimental and theoretical investigations are demonstrating these emissions to be a suitable candidate for the deformation monitoring, as a failure predictor and to know about the complex phenomenon of fracture. This article presents extensive literature review and a rigorous discussion on the work done in the past several decades regarding the exploration of electromagnetic emissions from a wide variety of materials and the underlying physical mechanisms. Thus, this review is an attempt to highlight main findings, proposed physical mechanisms, prospective applications, future scope and challenges of the electromagnetic emission detection technique.

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Section: Rocks and Brittle Materialsmentioning

confidence: 99%

“…Electromagnetic and (b) acoustic emissions obtained from a granite sample under compressive loading (used with permission from Elsevier)[101].…”

mentioning

confidence: 99%

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

2020

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“…Further effects are discussed too, e.g. polarisation effects [22,23], piezoelectric effects [24] or secondary emission effects such as light emitted by gas discharges in crack openings [10].…”

Section: Eme Source Descriptionmentioning

confidence: 99%

Measurement and Study of Electromagnetic Emission Generated by Tensile Fracture of Polymers and Carbon Fibres

Gade

Sause

2016

J Nondestruct Eval

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Electromagnetic emission (EME) signals generated by tensile fracture of four different types of polymers and three different carbon fibre types are presented and discussed. A suitable set-up for the detection of the electric field component of EME generated by fracture of solids is proposed. Basic theoretical considerations are made about the coupling between these field components and the capacitive sensors used to directly measure the short ranged and low frequency (kHz-MHz) electric fields emitted by the generation of free surface charges and their spatial movement as dictated by the vibrational motion of the crack walls. Special focus is put on solids with low conductivity, where the influences of the material on the emitted fields is small and the detected electric signals almost solely depend on the source dynamics and the sensor characteristics. Analysis of the influence of the acquisition circuit is presented. The discussion of the electric signals emitted by tensile fracture of carbon fibres and polymer specimens comprises the influences of the material properties on the signals as well as correlations between the signals and the crack dynamics, including the crack propagation velocities.

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“…Different accommodation mechanisms can occur in a sliding contact between two materials, which can be related to AE sources [2][3][4]. Mechanisms such as asperities adhesion and asperities plowing [5], generation of material debris [6,7] and cracking [8,9] are sources of AE that can generate specific acoustic signatures.…”

Section: Introductionmentioning

confidence: 99%

Tribolumen: A Tribometer for A Correlation Between AE Signals and Observation of Tribological Process in Real-Time—Application to A Dry Steel/Glass Reciprocating Sliding Contact

et al. 2020

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This paper deals with the development of an original apparatus called TRIBOLUMEN designed specifically for friction experiments on transparent materials. The friction measurement is synchronized with an acoustic emission (AE) sensor and the device is also equipped with a high-speed camera offering a direct view at the interface to gain a deeper understanding of tribological mechanisms. The TRIBOLUMEN device is in ball-on-flat contact configuration with a range of strokes from 5 to 500 µm and an oscillation frequency from 5 to 600 Hz. The experiments showed that this device has an adequate rigidity and can detect subtle friction modifications of the oscillating contacts. The observation of a steel-on-glass contact in real-time highlighted the initiation of Hertzian cracks followed by the formation of debris in the contact. Using the synchronous measurement, these mechanisms were clearly associated with different stages in the friction measurement and in the AE signals, which permitted to identify the AE signature of Hertzian cracks.

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Relationship between electromagnetic and acoustic emissions in deformed piezoelectric media: Microcracking signals

Cited by 26 publications

References 18 publications

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

Measurement and Study of Electromagnetic Emission Generated by Tensile Fracture of Polymers and Carbon Fibres

Tribolumen: A Tribometer for A Correlation Between AE Signals and Observation of Tribological Process in Real-Time—Application to A Dry Steel/Glass Reciprocating Sliding Contact

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