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Thermoelastic stress analysis of inhomogenous composite materials

Thermoelastic stress analysis of inhomogenous composite materials
Thermoelastic stress analysis of inhomogenous composite materials
In this work the effect of heterogeneity in woven composite materials is considered in the context of thermoelastic stress analysis (TSA). The approach is to consider the surface of a woven laminate as a ‘patchwork’ of orthogonally orientated unidirectional fibres. Assuming a state of uniform strain, the global strains are applied locally to predict the thermoelastic response of the woven material. A Cedip Silver IR system is used for the TSA measurements with a standard 27mm lens and a high resolution G1 magnifying lens. Experimental data shows that the strain field is non-uniform and closely related to the weave pattern of the fibre reinforcement. Out of plane deformations are identified as a possible explanation for the deviation between experimental data and theory.
Frühmann, R.K.
d87da520-94f7-49c5-8181-6c24b3a69843
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Frühmann, R.K.
d87da520-94f7-49c5-8181-6c24b3a69843
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6

Frühmann, R.K., Dulieu-Barton, J.M. and Quinn, S. (2007) Thermoelastic stress analysis of inhomogenous composite materials. 13th International Conference on Experimental Mechanics (ICEM07), Alexandroupolis, Greece. 30 Jun - 05 Jul 2007. 8 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

In this work the effect of heterogeneity in woven composite materials is considered in the context of thermoelastic stress analysis (TSA). The approach is to consider the surface of a woven laminate as a ‘patchwork’ of orthogonally orientated unidirectional fibres. Assuming a state of uniform strain, the global strains are applied locally to predict the thermoelastic response of the woven material. A Cedip Silver IR system is used for the TSA measurements with a standard 27mm lens and a high resolution G1 magnifying lens. Experimental data shows that the strain field is non-uniform and closely related to the weave pattern of the fibre reinforcement. Out of plane deformations are identified as a possible explanation for the deviation between experimental data and theory.

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More information

Submitted date: 16 February 2007
Published date: 1 July 2007
Venue - Dates: 13th International Conference on Experimental Mechanics (ICEM07), Alexandroupolis, Greece, 2007-06-30 - 2007-07-05
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 48730
URI: http://eprints.soton.ac.uk/id/eprint/48730
PURE UUID: 8a967e8e-3f24-49b0-a1f1-6fdc032c1141
ORCID for S. Quinn: ORCID iD orcid.org/0000-0002-9727-5080

Catalogue record

Date deposited: 10 Oct 2007
Last modified: 12 Dec 2021 03:24

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Contributors

Author: R.K. Frühmann
Author: S. Quinn ORCID iD

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