Three-dimensional assessment of low velocity impact damage in particle toughened composite laminates using micro-focus X-ray computed tomography and synchrotron radiation laminography
Three-dimensional assessment of low velocity impact damage in particle toughened composite laminates using micro-focus X-ray computed tomography and synchrotron radiation laminography
Results are presented studying the contribution of particle toughening to impact damage resistance in carbon fibre reinforced polymer materials. Micro-focus X-ray computed tomography and synchrotron radiation computed laminography were used to provide a novel, multiscale approach for assessing impact damage. Thin (1 mm thick) composite plates containing either untoughened or particle-toughened resin systems were subjected to low velocity impact. Damage was assessed three-dimensionally at voxel resolutions of 0.7 ?m and 4.3 ?m using SRCL and ?CT respectively; the former being an innovative approach to the laterally extended geometry of CFRP plates. Observations and measurements taken from ?CT scans captured the full extent of impact damage on both material systems revealing an interconnected network of intra- and inter-laminar cracks. These lower resolution images reveal that the particle-toughened system suppresses delaminations with little effect on intralaminar damage. The higher resolution images reveal that the particles contribute to toughening by crack deflection and bridging.
carbon fibre, impact behaviour, fracture toughness, X-ray computed tomography
62-69
Bull, D.J.
3569ba02-89de-4398-a14d-02c3f9b4eab2
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Helfen, L.
f87be34a-12b5-448a-aa70-55af4ae05584
September 2013
Bull, D.J.
3569ba02-89de-4398-a14d-02c3f9b4eab2
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Helfen, L.
f87be34a-12b5-448a-aa70-55af4ae05584
Bull, D.J., Spearing, S.M., Sinclair, I. and Helfen, L.
(2013)
Three-dimensional assessment of low velocity impact damage in particle toughened composite laminates using micro-focus X-ray computed tomography and synchrotron radiation laminography.
Composites Part A: Applied Science and Manufacturing, 52, .
(doi:10.1016/j.compositesa.2013.05.003).
Abstract
Results are presented studying the contribution of particle toughening to impact damage resistance in carbon fibre reinforced polymer materials. Micro-focus X-ray computed tomography and synchrotron radiation computed laminography were used to provide a novel, multiscale approach for assessing impact damage. Thin (1 mm thick) composite plates containing either untoughened or particle-toughened resin systems were subjected to low velocity impact. Damage was assessed three-dimensionally at voxel resolutions of 0.7 ?m and 4.3 ?m using SRCL and ?CT respectively; the former being an innovative approach to the laterally extended geometry of CFRP plates. Observations and measurements taken from ?CT scans captured the full extent of impact damage on both material systems revealing an interconnected network of intra- and inter-laminar cracks. These lower resolution images reveal that the particle-toughened system suppresses delaminations with little effect on intralaminar damage. The higher resolution images reveal that the particles contribute to toughening by crack deflection and bridging.
Text
Three-dimensional assessment of low velocity impact damage in particle toughened composite laminates using micro-focus X-ray computed tomography and sync.pdf
- Accepted Manuscript
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e-pub ahead of print date: 15 May 2013
Published date: September 2013
Keywords:
carbon fibre, impact behaviour, fracture toughness, X-ray computed tomography
Organisations:
Engineering Science Unit
Identifiers
Local EPrints ID: 355776
URI: http://eprints.soton.ac.uk/id/eprint/355776
ISSN: 1359-835X
PURE UUID: 78038d4c-e137-49aa-a2d6-5b852a81e590
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Date deposited: 05 Sep 2013 10:43
Last modified: 15 Mar 2024 03:18
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Author:
L. Helfen
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