A Proposed Non-Destructive Method Based on Sphere Launching and Piezoelectric Diaphragm

Autor:	Cristiano Soares Junior, Paulo Roberto Aguiar, Doriana M. D’Addona, Pedro Oliveira Conceição Junior, Reinaldo Götz Oliveira Junior
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	non-destructive test piezoelectric transducer SHM CFRP PLB Chemical technology TP1-1185
Zdroj:	Sensors, Vol 24, Iss 18, p 5874 (2024)
Druh dokumentu:	article
ISSN:	1424-8220 86345265
DOI:	10.3390/s24185874
Popis:	This work presents the study of a reproducible acoustic emission method based on the launching of a metallic sphere and low-cost piezoelectric diaphragm. For this purpose, tests were first conducted on a carbon fiber-reinforced polymer structure, and then on an aluminum structure for comparative analysis. The pencil-lead break (PLB) tests were also conducted for comparisons with the proposed method. Different launching heights and elastic deformations of the structures were investigated. The results show higher repeatability for the sphere impact method, as the PLB is more affected by human inaccuracy, and it was also effective in damage detection.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/8d41d8a1d177488e863452655c9b617a Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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