Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DIFFERENTIAL EVOLUTION APPLIED TO PLANAR LOCALIZATION OF CRACKS THROUGH ACOUSTIC EMISSION SIGNALS
Submission Author:
Gabriel Maidl , PR
Co-Authors:
Gabriel Maidl, Eduardo Yamao, Fábio Nara, Felipe Bett, Marco Aurélio Luzio, Renato Penteado, Leandro dos Santos Coelho
Presenter: Gabriel Maidl
doi://10.26678/ABCM.COBEM2019.COB2019-0677
Abstract
In the present work, an alternative method for cracks localization in steel plates using acoustic emissions signals is presented. The method relies in the use of differential evolution optimization to find the position of a source of acoustic signals generated by a crack propagation. The proposed technique main's advantage is to avoid iterative differentiation of non-linear functions and the iterative calculus of trigonometric functions. In addition, it has outperformed the traditional application of Newton-Raphson method in 39.4\% when evaluating the mean error between the estimated solution and the actual signal source. Considering the reduction of complex calculus in the crack localization procedure, thereby this method allows embedded applications, which can provide a useful solution to continuous monitoring of risk structures.
Keywords
Non-destructive testing, Acoustic emissions, Crack localization, Optimization, Differential Evolution
