Communication Dans Un Congrès Année : 2023

A method to detect mechanical cracks creation and/or propagation in insulators

Résumé

Fracto-emission is the ejection of electrons and positive ions from mater subjected to a mechanical fracture. The mechanical fracture is accompanied by the creation and/or the propagation of cracks in the mater, leading to a succession of fracto-emissions. First, we have described, through analytical equations, the amount of surface charge produced by a mechanical fracture and how it can be measured with an external measuring circuit. Then, this measuring device is used to detect the appearance of cracks and their propagation under mechanical stress. This method allows to study the electro-mechanical interactions, particularly for insulators for which the electromechanical breakdown model is being considered.

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Dates et versions

hal-04747988 , version 1 (22-10-2024)

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Tara Niakan, Zarel Valdez-Nava, David Malec. A method to detect mechanical cracks creation and/or propagation in insulators. 2023 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2023), Oct 2023, East Rutherford, NJ, United States. ⟨10.1109/CEIDP51414.2023.10410545⟩. ⟨hal-04747988⟩
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