Articles | Volume 17, issue 7
https://doi.org/10.5194/nhess-17-1025-2017
https://doi.org/10.5194/nhess-17-1025-2017
Research article
 | 
04 Jul 2017
Research article |  | 04 Jul 2017

Signal frequency distribution and natural-time analyses from acoustic emission monitoring of an arched structure in the Castle of Racconigi

Gianni Niccolini, Amedeo Manuello, Elena Marchis, and Alberto Carpinteri

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Short summary
An architectural element of the Royal Castle of Racconigi (northwestern Italy, 17th century) is subjected to nondestructive testing for structural integrity evaluation. It is found that the so-called acoustic emissions – high-frequency vibrations emitted as tiny cracks that develop inside stone and concrete – correlate with those of small nearby earthquakes, suggesting new approaches to monitoring gradual damage accumulation inflicted by such earthquakes on architectural heritage and monuments.
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