Damage Identification in Concrete using Impact Non-Linear Reverberation Spectroscopy
(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:
https://lup.lub.lu.se/record/7766732
- author
- Dahlén, Unn LU ; Rydén, Nils LU and Jakobsson, Andreas LU
- organization
- publishing date
- 2015
- 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}}, }