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Analysis of large scale composite components using TSA at low cyclic frequencies

Analysis of large scale composite components using TSA at low cyclic frequencies
Analysis of large scale composite components using TSA at low cyclic frequencies
Thermoelastic stress analysis (TSA) has been applied to large scale honeycomb core sandwich structure with carbon fibre face sheets. The sandwich panel was subjected to a pressure load using a custom designed test rig that could only achieve low cycle frequencies of 1 Hz. Two calibration approaches have been discussed and investigated to allow the use of the thermoelastic response as a validation tool for the stress distribution predicted by an FE model. The TSA data was calibrated using thermoelastic constants derived experimentally using tensile strips of the face sheet material. It has been shown that by using constants obtained from the tensile strips manufactured with the same lay-up as the face sheet of the sandwich panel it was possible to achieve a good correspondence between the predicted stress distribution and the measured TSA response
Society for Experimental Mechanics
Crump, D.A.
5fa2d636-89bc-4005-a948-32554ef3d951
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Crump, D.A. and Dulieu-Barton, J.M. (2010) Analysis of large scale composite components using TSA at low cyclic frequencies In Proceedings of the SEM Annual Conference 2010. Society for Experimental Mechanics..

Crump, D.A. and Dulieu-Barton, J.M. (2010) Analysis of large scale composite components using TSA at low cyclic frequencies In Proceedings of the SEM Annual Conference 2010. Society for Experimental Mechanics..

Record type: Conference or Workshop Item (Paper)

Abstract

Thermoelastic stress analysis (TSA) has been applied to large scale honeycomb core sandwich structure with carbon fibre face sheets. The sandwich panel was subjected to a pressure load using a custom designed test rig that could only achieve low cycle frequencies of 1 Hz. Two calibration approaches have been discussed and investigated to allow the use of the thermoelastic response as a validation tool for the stress distribution predicted by an FE model. The TSA data was calibrated using thermoelastic constants derived experimentally using tensile strips of the face sheet material. It has been shown that by using constants obtained from the tensile strips manufactured with the same lay-up as the face sheet of the sandwich panel it was possible to achieve a good correspondence between the predicted stress distribution and the measured TSA response

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Published date: June 2010
Venue - Dates: Society for Experimental Mechanics Annual Conference, United States, 2010-06-07 - 2010-06-10
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 175045
URI: http://eprints.soton.ac.uk/id/eprint/175045
PURE UUID: 385785a2-cc6e-4151-8c9a-757642075e66

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Date deposited: 21 Feb 2011 13:17
Last modified: 18 Jul 2017 12:10

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