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Acoustic emission in sliding friction

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dc.contributor Vives i Santa-Eulàlia, Eduard
dc.creator Menéndez Vallejo, Laura
dc.date 2018-10-05T14:40:48Z
dc.date 2018-10-05T14:40:48Z
dc.date 2018-06
dc.date.accessioned 2024-12-16T10:26:48Z
dc.date.available 2024-12-16T10:26:48Z
dc.identifier http://hdl.handle.net/2445/125094
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/21534
dc.description Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2018, Tutor: Eduard Vives Santa-Eulàlia
dc.description Acoustic emission associated with friction between two materials is studied. In particular we focus on the acoustic emission signals generated when sliding an aluminium block on sand paper. We show that energy and amplitude of the individual signals (hits) are distributed according to a combined probability law. Most energies and amplitudes are power-law distributed and fewer are Gaussian distributed. It has also been found that decreasing the roughness of the sand paper displaces the Gaussian distribution to larger energies and amplitudes. The overall scenario can be explained in the framework of the Dragon King Theory, that suggests that extreme events follow a different physical law than those in the main distribution
dc.format 5 p.
dc.format application/pdf
dc.language eng
dc.rights cc-by-nc-nd (c) Menéndez, 2018
dc.rights http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights info:eu-repo/semantics/openAccess
dc.source Treballs Finals de Grau (TFG) - Física
dc.subject Fricció
dc.subject Acústica
dc.subject Treballs de fi de grau
dc.subject Friction
dc.subject Acoustics
dc.subject Bachelor's theses
dc.title Acoustic emission in sliding friction
dc.type info:eu-repo/semantics/bachelorThesis


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