Work

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

Year: 2024

Type: article

Abstract: 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.

Source: Sensors

DOI: 10.3390/s24185874

Authors: Cristiano Soares Junior, Paulo Roberto de Aguiar, Doriana M. D’Addona, Pedro Oliveira Conceição Junior, Reinaldo Götz Oliveira Junior

Institutions: Universidade Estadual Paulista (Unesp), University of Naples Federico II, Universidade de São Paulo, Instituto Federal de Educação Ciência e Tecnologia do Mato Grosso do Sul

Language: English

Topic: Ultrasonics and Acoustic Wave Propagation

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,955

Funder: Conselho Nacional de Desenvolvimento Científico e Tecnológico