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Composite laminate impact damage assessment by high resolution 3D X-ray tomography and laminography

Composite laminate impact damage assessment by high resolution 3D X-ray tomography and laminography
Composite laminate impact damage assessment by high resolution 3D X-ray tomography and laminography
Improvements to toughening mechanisms in composite materials have hitherto relied on visual inspection techniques that can be rather limited, especially since the inherent damage behaviour is three-dimensional (3D) requiring high resolution to capture micro-cracks and similar damage. To achieve a better understanding of impact damage behaviour, synchrotron radiation computed laminography (SRCL) and computed tomography (SRCT) techniques were used to capture 3D damage mechanisms with voxel sizes of 0.7?m and 1.4?m respectively. Comparisons between impacted toughened and non-toughened carbon fibre reinforced polymer (CFRP) systems were made in which toughening particles were introduced into the matrix of the toughened material. This study has found that at the macro scale, the overall 3D damage pattern in toughened and non-toughened specimens are very similar, however when studied at the micro level, it is clear that significant differences in damage between the two systems exist.
CFRP, impact damage, damage resistance, BVID, synchrotron radiation computer tomography, laminography, micro-CT
Bull, D.J.
3569ba02-89de-4398-a14d-02c3f9b4eab2
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Helfen, L.
f87be34a-12b5-448a-aa70-55af4ae05584
Bull, D.J.
3569ba02-89de-4398-a14d-02c3f9b4eab2
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Helfen, L.
f87be34a-12b5-448a-aa70-55af4ae05584

Bull, D.J., Sinclair, I., Spearing, S.M. and Helfen, L. (2011) Composite laminate impact damage assessment by high resolution 3D X-ray tomography and laminography. ICCM 18: 18th International Conference on Composite Materials, Korea, Republic of. 21 - 26 Aug 2011. 6 pp .

Record type: Conference or Workshop Item (Other)

Abstract

Improvements to toughening mechanisms in composite materials have hitherto relied on visual inspection techniques that can be rather limited, especially since the inherent damage behaviour is three-dimensional (3D) requiring high resolution to capture micro-cracks and similar damage. To achieve a better understanding of impact damage behaviour, synchrotron radiation computed laminography (SRCL) and computed tomography (SRCT) techniques were used to capture 3D damage mechanisms with voxel sizes of 0.7?m and 1.4?m respectively. Comparisons between impacted toughened and non-toughened carbon fibre reinforced polymer (CFRP) systems were made in which toughening particles were introduced into the matrix of the toughened material. This study has found that at the macro scale, the overall 3D damage pattern in toughened and non-toughened specimens are very similar, however when studied at the micro level, it is clear that significant differences in damage between the two systems exist.

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More information

Published date: 24 August 2011
Venue - Dates: ICCM 18: 18th International Conference on Composite Materials, Korea, Republic of, 2011-08-21 - 2011-08-26
Keywords: CFRP, impact damage, damage resistance, BVID, synchrotron radiation computer tomography, laminography, micro-CT
Organisations: Engineering Science Unit

Identifiers

Local EPrints ID: 355781
URI: https://eprints.soton.ac.uk/id/eprint/355781
PURE UUID: 401915da-56ed-44f9-83ef-af2bbb694532
ORCID for D.J. Bull: ORCID iD orcid.org/0000-0001-6711-6153
ORCID for S.M. Spearing: ORCID iD orcid.org/0000-0002-3059-2014

Catalogue record

Date deposited: 05 Sep 2013 11:01
Last modified: 20 Jul 2019 00:59

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