Towards a hybrid infrared approach for damage assessment
Towards a hybrid infrared approach for damage assessment
The thermoelastic response obtained from an infra-red (IR) detector contains two
components: the magnitude of the small stress induced temperature change caused by the
thermoelastic effect and the phase angle of the temperature change relative to a reference signal
generated by an application of a stress change. The phase angle is related to nonlinearity in the
thermoelastic response and departures from the simple linear relationship that underpins
thermoelastic stress analysis (TSA). The phase data could be used to make an assessment of
temperature evolutions caused by viscoelastic behaviour resulting from damage and provide a basis
for its evaluation. In the current paper the physics of other infra-red techniques used for nondestructive
evaluation is used to better understand the nature of the thermoelastic response. The
objective is to provide better exploitation of TSA by alternative processing of the IR measurements.
Three case studies are presented that demonstrate the potential of the alternative processing for
evaluating damage.
0-87849-248-8
57-62
Freuhmann, R.K.
0f4fc30f-4e3d-4b34-9001-c93ec23767d7
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Freuhmann, R.K.
0f4fc30f-4e3d-4b34-9001-c93ec23767d7
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Freuhmann, R.K., Dulieu-Barton, J.M. and Quinn, S.
(2010)
Towards a hybrid infrared approach for damage assessment.
Dulieu-Barton, J.M. and Mines, R.A.W.
(eds.)
In Advances in Experimental Mechanics VII.
vol. 24-25,
Trans Tech Publications.
.
(In Press)
(doi:10.4028/www.scientific.net/AMM.24-25.57).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The thermoelastic response obtained from an infra-red (IR) detector contains two
components: the magnitude of the small stress induced temperature change caused by the
thermoelastic effect and the phase angle of the temperature change relative to a reference signal
generated by an application of a stress change. The phase angle is related to nonlinearity in the
thermoelastic response and departures from the simple linear relationship that underpins
thermoelastic stress analysis (TSA). The phase data could be used to make an assessment of
temperature evolutions caused by viscoelastic behaviour resulting from damage and provide a basis
for its evaluation. In the current paper the physics of other infra-red techniques used for nondestructive
evaluation is used to better understand the nature of the thermoelastic response. The
objective is to provide better exploitation of TSA by alternative processing of the IR measurements.
Three case studies are presented that demonstrate the potential of the alternative processing for
evaluating damage.
Text
AMM.24-25.57_final_offprint.pdf
- Other
Restricted to Repository staff only
Request a copy
More information
Accepted/In Press date: 2010
Venue - Dates:
7th BSSM International Conference on Advances in Experimental Mechanics, Department of Engineering, University of Liverpool, Liverpool, United Kingdom, 2010-09-07 - 2010-09-09
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 159413
URI: http://eprints.soton.ac.uk/id/eprint/159413
ISBN: 0-87849-248-8
ISSN: 0309-3247
PURE UUID: ae14e6b0-01e0-420d-ba0b-2a95b72701c0
Catalogue record
Date deposited: 30 Jun 2010 07:38
Last modified: 14 Mar 2024 01:53
Export record
Altmetrics
Contributors
Author:
R.K. Freuhmann
Author:
S. Quinn
Editor:
J.M. Dulieu-Barton
Editor:
R.A.W. Mines
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics