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Assessment of fatigue damage evolution in woven composite materials using infra-red techniques

Assessment of fatigue damage evolution in woven composite materials using infra-red techniques
Assessment of fatigue damage evolution in woven composite materials using infra-red techniques
Thermoelastic stress analysis (TSA) is used to study the growth of fatigue damage in single and two
ply, 2 x 2 twill woven composite materials. Test specimens were subjected to a uniaxial tensile cyclic
loading with maximum stresses of 10, 15 and 20% of the ultimate failure stress. The development of
fatigue damage locally within the weft yarns is monitored using high resolution TSA. The specimens
were subsequently inspected using optical microscopy to evaluate the location and extent of cracks.
Cracks were found in the weft fibres, running transverse to the loading direction. It is demonstrated that
the lighter weight fabric is more resilient to damage progression. A signature pattern is identified in the
TSA phase data that indicates the onset and presence of fatigue damage in the composite material.
A: Textile composites, B: Fatigue, C: Stress concentrations, Thermoelastic stress analysis (TSA)
0266-3538
937-946
Fruehmann, R.K.
0f4fc30f-4e3d-4b34-9001-c93ec23767d7
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Fruehmann, R.K.
0f4fc30f-4e3d-4b34-9001-c93ec23767d7
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, S.
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6

Fruehmann, R.K., Dulieu-Barton, J.M. and Quinn, S. (2010) Assessment of fatigue damage evolution in woven composite materials using infra-red techniques. Composites Science and Technology, 70, 937-946. (doi:10.1016/j.compscitech.2010.02.009).

Record type: Article

Abstract

Thermoelastic stress analysis (TSA) is used to study the growth of fatigue damage in single and two
ply, 2 x 2 twill woven composite materials. Test specimens were subjected to a uniaxial tensile cyclic
loading with maximum stresses of 10, 15 and 20% of the ultimate failure stress. The development of
fatigue damage locally within the weft yarns is monitored using high resolution TSA. The specimens
were subsequently inspected using optical microscopy to evaluate the location and extent of cracks.
Cracks were found in the weft fibres, running transverse to the loading direction. It is demonstrated that
the lighter weight fabric is more resilient to damage progression. A signature pattern is identified in the
TSA phase data that indicates the onset and presence of fatigue damage in the composite material.

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Published date: 2010
Keywords: A: Textile composites, B: Fatigue, C: Stress concentrations, Thermoelastic stress analysis (TSA)
Organisations: Fluid Structure Interactions Group, Engineering Sciences

Identifiers

Local EPrints ID: 72546
URI: http://eprints.soton.ac.uk/id/eprint/72546
ISSN: 0266-3538
PURE UUID: 9593cddc-b27d-4aa2-84e7-0ada45cfc3f0
ORCID for S. Quinn: ORCID iD orcid.org/0000-0002-9727-5080

Catalogue record

Date deposited: 18 Feb 2010
Last modified: 10 Jan 2022 02:48

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Contributors

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

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