Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Probability of Damage in Structures by the Use of Lamb Waves and RAPID Algorithm
Submission Author:
Stanley Washington Ferreira Rezende , GO
Co-Authors:
Stanley Washington Ferreira Rezende, Bruno Pereira Barella, João Paulo Moreira Bento, Jose dos Reis Vieira de Moura Jr
Presenter: Stanley Washington Ferreira Rezende
doi://10.26678/ABCM.COBEM2017.COB17-1498
Abstract
With recent development of new composite materials, the mechanical structures demand the use of lightweight and high resistance to fatigue in aircraft and engineering applications. However, damage detection in composite materials is a very difficult task by using traditional vibration methods. This contribution uses the Lamb Waves SHM method in an aluminum beam for damage detection purposes with a low cost experimental apparatus. Three simulated damages (added mass) were proposed and identified by the Wavelet Transforms for feature extraction and the reconstruction algorithm for probabilistic inspection of damage (RAPID) algorithm to quantify the probability of occurrence of damage, locating it from the sparse matrix of the patches. Results can illustrate good results of the experimental setup associated to the proposed mathematical tools in order to identify and quantify the damage.
Keywords
Lamb Waves, Structural Health Monitoring, RAPID algorithm, CWT
