Behaviour of stress wave propagation in utility timber pole

UTSePress Research/Manakin Repository

Search UTSePress Research


Advanced Search

Browse

My Account

Show simple item record

dc.contributor.author Li, Jianchun en_US
dc.contributor.author Samali, Bijan en_US
dc.contributor.author Subhani, Saad en_US
dc.contributor.editor Bijan Samali, Mario M. Attard & Chongmin Song en_US
dc.date.accessioned 2014-04-03T02:23:42Z
dc.date.available 2014-04-03T02:23:42Z
dc.date.issued 2013 en_US
dc.identifier 2012000331 en_US
dc.identifier.citation Subhani, Md Mahbube, Samali, Bijan, and Li, Jianchun 2013, 'Behaviour of stress wave propagation in utility timber pole', CRC PRESS / BALKEMA, UK, pp. 1077-1082. en_US
dc.identifier.issn 978-0-415-63318-5 en_US
dc.identifier.other E1 en_US
dc.identifier.uri http://hdl.handle.net/10453/23633
dc.description.abstract Non-destructive testing has been used for many years to evaluate the in situ condition of timber piles. Longitudinal impact is usually applied on the top of piles to induce longitudinal wave to detect faults in piles due to the fact that the longitudinalwave has less dispersive nature at lowfrequency. On the other hand,when it comes to evaluation of poles in situ, it is different as poles are partly embedded in soil and it is more practical to produce bending waves, as the top of the pole is not easily accessible. However, bending wave is known for its highly dispersive nature; especially in the low frequency range which is usually induced in low strain integrity testing. As bending wave can be considered as a hybrid of longitudinal and shear waves, it will be helpful, if it could detect the component of these twowaves separately.To do so, components of displacements or accelerations along radial and longitudinal directions need to be determined. By applying Fast Fourier Transform (FFT) on the signals, the dominant frequencies can be obtained. It has been found that, the longitudinal component decreases along radial direction which indicates the presence of bending wave component and this finding allows to the application of ContinuousWavelet Transform (CWT) on the longitudinal component of wave signals in order to obtain phase velocity. Phase velocities at different frequencies are then determined to draw the dispersive curve and compare with analytical phase velocity curve. The dispersion curve matched well with the analytical curve. en_US
dc.language English en_US
dc.publisher CRC PRESS / BALKEMA en_US
dc.relation.isbasedon en_US
dc.title Behaviour of stress wave propagation in utility timber pole en_US
dc.parent From Materials to Structures: Advancement through Innovation - PROCEEDINGS OF THE 22ND AUSTRALASIAN CONFERENCE ON THE MECHANICS OF STRUCTURES AND MATERIALS en_US
dc.journal.volume en_US
dc.journal.number en_US
dc.publocation UK en_US
dc.identifier.startpage 1077 en_US
dc.identifier.endpage 1082 en_US
dc.cauo.name FEIT.School of Civil and Environmental Engineering en_US
dc.conference Verified OK en_US
dc.for 090500 en_US
dc.personcode 10982181 en_US
dc.personcode 930859 en_US
dc.personcode 870186 en_US
dc.percentage 100 en_US
dc.classification.name Civil Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom THE 22ND AUSTRALASIAN CONFERENCE ON THE MECHANICS OF STRUCTURES AND MATERIALS - From Materials to Structures: Advancement through Innovation en_US
dc.date.activity 20121211 en_US
dc.location.activity SYDNEY, AUSTRALIA en_US
dc.description.keywords en_US
dc.staffid 870186 en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record