A numerical investigation on the damage identification of timber utility poles based on wavelet packet energy

N. Yan, J. Li, U. Dackermann, B. Samali

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

![CDATA[Timber utility poles are traditionally used for electricity and telecommunication distribution. Due to the old age of many distribution networks, the health condition of these timber poles needs to be assessed. Non-destructive testing (NDT) methods based on stress wave propagation have successfully been used in practice for the condition assessment of timber poles. However, for the successful application of these methods for damage identification, some limitations exist. To overcome these limitations, this paper proposes the use of wavelet packet energy (WPE) for the stress wave data analysis and damage identification. WPE is a sensitive indicator for structural damage and has been used for damage detection in various types of structures. This paper presents a comprehensive investigation on the novel use of WPE for the damage identification in timber utility poles using finite element (FE) models. The research study comprises of the following investigations: i) a comparative study between 2D and 3D models, ii) a sensitivity study of mesh density for 2D models, and iii) a study of the novel WPE-based technique for damage detection in timber poles. The results of the new method clearly show the effectiveness of the proposed damage identification technique based on WPE.]]
Original languageEnglish
Title of host publicationProceedings of the 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), Byron Bay, Australia, 9-12 December 2014
PublisherSouthern Cross University
Pages1185-1190
Number of pages6
ISBN (Print)9780994152008
Publication statusPublished - 2014
EventAustralasian Conference on the Mechanics of Structures and Materials -
Duration: 9 Dec 2014 → …

Conference

ConferenceAustralasian Conference on the Mechanics of Structures and Materials
Period9/12/14 → …

Open Access - Access Right Statement

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license_visit http://creativecommons.org/licenses/by/4.0/

Keywords

  • damage detection
  • finite element method
  • stress waves
  • wood poles

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