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Damage Identification in Concrete using Impact Non-Linear Reverberation Spectroscopy

Dahlén, Unn LU ; Rydén, Nils LU and Jakobsson, Andreas LU orcid (2015) In NDT & E International 75. p.15-25
Abstract
High amplitude non-linear acoustic methods have shown potential for the identification of micro damage in brittle materials such as concrete. Commonly, these methods evaluate a non-linearity parameter from the relative change in frequency and attenuation with strain amplitude. Here, a novel attenuation model is introduced to describe the free reverberation from a standard impact resonance frequency test, together with an algorithm for estimating the unknown model coefficients. The non-linear variation can hereby by analyzed over a wider dynamic range as compared to conventional methods. The experimental measurement is simple and fully compatible with the standardized free-free linear impact frequency test.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
on-destructive testing, Impact method, Reverberation spectroscopy
in
NDT & E International
volume
75
pages
15 - 25
publisher
Elsevier
external identifiers
  • wos:000360864800003
  • scopus:84962252373
ISSN
0963-8695
DOI
10.1016/j.ndteint.2015.04.002
language
English
LU publication?
yes
id
68e1f1ca-54e6-4961-999f-e31b78d2daae (old id 7766732)
date added to LUP
2016-04-01 09:50:48
date last changed
2022-04-19 20:13:45
@article{68e1f1ca-54e6-4961-999f-e31b78d2daae,
  abstract     = {{High amplitude non-linear acoustic methods have shown potential for the identification of micro damage in brittle materials such as concrete. Commonly, these methods evaluate a non-linearity parameter from the relative change in frequency and attenuation with strain amplitude. Here, a novel attenuation model is introduced to describe the free reverberation from a standard impact resonance frequency test, together with an algorithm for estimating the unknown model coefficients. The non-linear variation can hereby by analyzed over a wider dynamic range as compared to conventional methods. The experimental measurement is simple and fully compatible with the standardized free-free linear impact frequency test.}},
  author       = {{Dahlén, Unn and Rydén, Nils and Jakobsson, Andreas}},
  issn         = {{0963-8695}},
  keywords     = {{on-destructive testing; Impact method; Reverberation spectroscopy}},
  language     = {{eng}},
  pages        = {{15--25}},
  publisher    = {{Elsevier}},
  series       = {{NDT & E International}},
  title        = {{Damage Identification in Concrete using Impact Non-Linear Reverberation Spectroscopy}},
  url          = {{https://lup.lub.lu.se/search/files/1312590/7766736.pdf}},
  doi          = {{10.1016/j.ndteint.2015.04.002}},
  volume       = {{75}},
  year         = {{2015}},
}