Vibration-based method for damage detection at welded beams and rods

Garcia-fogeda Nuñez, Pablo and Salgado Sanchez, P. and Lopez Negro, P. (2016). Vibration-based method for damage detection at welded beams and rods. "Latin American Journal of Solids and Structures", v. 13 ; pp. 2336-2355. ISSN 1679-7825. https://doi.org/10.1590/1679-78252881.

Description

Title: Vibration-based method for damage detection at welded beams and rods
Author/s:
  • Garcia-fogeda Nuñez, Pablo
  • Salgado Sanchez, P.
  • Lopez Negro, P.
Item Type: Article
Título de Revista/Publicación: Latin American Journal of Solids and Structures
Date: 2016
ISSN: 1679-7825
Volume: 13
Subjects:
Freetext Keywords: Vibrations, welding, damage detection, non-destructive testing
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work, a vibration-based method for damage detection at welded beams and rods is presented. The model of the structural element includes the effect of the added inertia due to the welding process. Two methods of solution, analytically and by means of the Finite Element Method (FEM), are presented. From the results obtained it can be asseverated that the method can be a useful tool to detect degradation of welded structures. In contrast to other existing methods for cracks detection, it is shown that several frequencies have to be taken into consideration to determine the wear characteristics of the welded elements, since depending on the location of welding, some frequencies can be very little sensitive to the reduction of rigidity at the welded section. The results presented show similar tendency to those obtained by other investigations for cracks detection when added inertia was not included.

More information

Item ID: 48086
DC Identifier: http://oa.upm.es/48086/
OAI Identifier: oai:oa.upm.es:48086
DOI: 10.1590/1679-78252881
Official URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016001302336&lng=en&tlng=en
Deposited by: Memoria Investigacion
Deposited on: 27 Feb 2018 12:26
Last Modified: 03 Jun 2019 11:26
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