Journal article

Application of stress wave propagation technique for condition assessment of timber poles

S Mudiyanselage, P Rajeev, E Gad, B Sriskantharajah, I Flatley

Structure and Infrastructure Engineering | Taylor & Francis | Published : 2019

Abstract

© 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. The stress wave propagation technique can be effectively used to assess the condition of timber utility poles. However, reliable detection of damage based on the reflected wave within the time domain is not always possible. Therefore, various signal processing methods such as frequency-domain analysis and time-frequency analysis can be adopted to overcome this problem depending on the application. In this paper, Hilbert–Huang and continuous wavelet transforms are selected as signal processing methods to analyse the reflected wave. The signal is initially subjected to an empirical mode decomposition process prior to the c..

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University of Melbourne Researchers