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Non-contact excitation of fundamental resonance frequencies of an asphalt concrete specimen

Gudmarsson, Anders; Rydén, Nils LU and Birgisson, Björn (2015) 41st Review of Progress in Quantitative Nondestructive Evaluation In AIP Conference Proceedings 1650. p.1401-1408
Abstract
Impact hammer and non-contact speaker excitation were applied to an asphalt concrete, a PVC-U and a concrete specimen to measure the fundamental longitudinal resonance frequency at different strain levels. The impact and the noncontact excitation methods resulted in similar resonance frequencies for the undamaged asphalt concrete and for the PVC-U specimen. However, the two excitation approaches gave different results for the concrete specimen, which was shown to have a nonlinear response to increasing strain levels. A reduction and a following recovery of the resonance frequency of the asphalt concrete were shown after the specimen was exposed to a small amount of damage. However, no fast nonlinear dynamics were observed for the asphalt... (More)
Impact hammer and non-contact speaker excitation were applied to an asphalt concrete, a PVC-U and a concrete specimen to measure the fundamental longitudinal resonance frequency at different strain levels. The impact and the noncontact excitation methods resulted in similar resonance frequencies for the undamaged asphalt concrete and for the PVC-U specimen. However, the two excitation approaches gave different results for the concrete specimen, which was shown to have a nonlinear response to increasing strain levels. A reduction and a following recovery of the resonance frequency of the asphalt concrete were shown after the specimen was exposed to a small amount of damage. However, no fast nonlinear dynamics were observed for the asphalt concrete through the speaker measurements. (Less)
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author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
AIP Conference Proceedings
volume
1650
pages
1401 - 1408
publisher
American Institute of Physics
conference name
41st Review of Progress in Quantitative Nondestructive Evaluation
DOI
10.1063/1.4914755
language
English
LU publication?
no
id
ff1c4486-3714-4888-bf46-77288c3edda3 (old id 7936096)
date added to LUP
2015-09-22 06:57:42
date last changed
2016-06-29 09:15:13
@misc{ff1c4486-3714-4888-bf46-77288c3edda3,
  abstract     = {Impact hammer and non-contact speaker excitation were applied to an asphalt concrete, a PVC-U and a concrete specimen to measure the fundamental longitudinal resonance frequency at different strain levels. The impact and the noncontact excitation methods resulted in similar resonance frequencies for the undamaged asphalt concrete and for the PVC-U specimen. However, the two excitation approaches gave different results for the concrete specimen, which was shown to have a nonlinear response to increasing strain levels. A reduction and a following recovery of the resonance frequency of the asphalt concrete were shown after the specimen was exposed to a small amount of damage. However, no fast nonlinear dynamics were observed for the asphalt concrete through the speaker measurements.},
  author       = {Gudmarsson, Anders and Rydén, Nils and Birgisson, Björn},
  language     = {eng},
  pages        = {1401--1408},
  publisher    = {ARRAY(0xa0e72a8)},
  series       = {AIP Conference Proceedings},
  title        = {Non-contact excitation of fundamental resonance frequencies of an asphalt concrete specimen},
  url          = {http://dx.doi.org/10.1063/1.4914755},
  volume       = {1650},
  year         = {2015},
}