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Thermoelastic investigation of residual stress: plastic deformation and the change in thermoelastic constant

Thermoelastic investigation of residual stress: plastic deformation and the change in thermoelastic constant
Thermoelastic investigation of residual stress: plastic deformation and the change in thermoelastic constant
Plastic deformation causes very small changes in the thermoelastic response of metallic materials; this variation of the thermoelastic constant has the potential to form the basis of a new non-destructive, non-contact, full-field technique for residual stress assessment that is quicker and cheaper than existing methods. The effect of plastic strain on the thermoelastic constant is presented as a potential basis for a calibration methodology that reveals areas of a component that have experienced plastic strain. Establishing this basis provides the initial step in identifying a new approach to residual stress analysis using the thermoelastic response. An evaluation of initial calibration results is presented and the feasibility of applying the methodology to actual components is assessed. As the response to plastic strain is likely to be small it is necessary to identify the effects of the paint coating; experimental work is presented that highlights the importance of repeatable coating approaches.
2100-014X
38016-[8pp]
Robinson, A.F.
88cd470c-4c0e-4d31-a56b-a23609518813
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Burguete, R.L.
1fd6577f-2899-4206-a4f3-6d06d97b99b1
Robinson, A.F.
88cd470c-4c0e-4d31-a56b-a23609518813
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Burguete, R.L.
1fd6577f-2899-4206-a4f3-6d06d97b99b1

Robinson, A.F., Dulieu-Barton, J.M., Quinn, S. and Burguete, R.L. (2010) Thermoelastic investigation of residual stress: plastic deformation and the change in thermoelastic constant. EPJ Web of Conferences, 6, 38016-[8pp]. (doi:10.1051/epjconf/20100638016).

Record type: Article

Abstract

Plastic deformation causes very small changes in the thermoelastic response of metallic materials; this variation of the thermoelastic constant has the potential to form the basis of a new non-destructive, non-contact, full-field technique for residual stress assessment that is quicker and cheaper than existing methods. The effect of plastic strain on the thermoelastic constant is presented as a potential basis for a calibration methodology that reveals areas of a component that have experienced plastic strain. Establishing this basis provides the initial step in identifying a new approach to residual stress analysis using the thermoelastic response. An evaluation of initial calibration results is presented and the feasibility of applying the methodology to actual components is assessed. As the response to plastic strain is likely to be small it is necessary to identify the effects of the paint coating; experimental work is presented that highlights the importance of repeatable coating approaches.

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More information

Published date: August 2010
Venue - Dates: 14th International Conference on Experimental Mechanics, 2010-07-01 - 2010-07-01
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 162853
URI: http://eprints.soton.ac.uk/id/eprint/162853
ISSN: 2100-014X
PURE UUID: e4759b7a-f9a0-4c53-b12d-d688c64432aa
ORCID for S. Quinn: ORCID iD orcid.org/0000-0002-9727-5080

Catalogue record

Date deposited: 31 Aug 2010 08:48
Last modified: 14 Mar 2024 02:03

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Contributors

Author: A.F. Robinson
Author: S. Quinn ORCID iD
Author: R.L. Burguete

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