High resolution tomographic imaging and modelling of notch tip damage in a laminated composite
High resolution tomographic imaging and modelling of notch tip damage in a laminated composite
Synchrotron radiation-computed tomography (SRCT) has been used to observe in situ damage growth and enable micromechanical damage characterization in [90/0]s carbon fibre-epoxy composite samples loaded in uniaxial tension to stresses ranging from 30% to 90% of the nominal failure stress. A three dimensional finite element model has been constructed to predict crack opening displacements and shear displacements in the 0 degrees plies resulting from thermal residual stress imposed during autoclave cure and from the application of mechanical load. Of particular interest is the demonstration of SRCT as a technique to enable direct, in situ, 3-D, non-destructive damage quantification to assist model development and provide model validation. In addition it has been identified that SRCT has the potential for full field analysis of strain re-distributions during damage growth.
carbon fibres, matrix cracking, thermal properties, finite element analysis (fea), synchrotron x-ray tomography
1444-1452
Wright, P.
56f297c9-9693-463d-ad60-f23cddc80250
Moffat, A.J.
152c31e0-5df4-4b0e-8db6-f8f5c43ae4b1
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
30 September 2010
Wright, P.
56f297c9-9693-463d-ad60-f23cddc80250
Moffat, A.J.
152c31e0-5df4-4b0e-8db6-f8f5c43ae4b1
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Wright, P., Moffat, A.J., Sinclair, I. and Spearing, S.M.
(2010)
High resolution tomographic imaging and modelling of notch tip damage in a laminated composite.
Composites Science and Technology, 70 (10), Autumn Issue, .
(doi:10.1016/j.compscitech.2010.04.012).
Abstract
Synchrotron radiation-computed tomography (SRCT) has been used to observe in situ damage growth and enable micromechanical damage characterization in [90/0]s carbon fibre-epoxy composite samples loaded in uniaxial tension to stresses ranging from 30% to 90% of the nominal failure stress. A three dimensional finite element model has been constructed to predict crack opening displacements and shear displacements in the 0 degrees plies resulting from thermal residual stress imposed during autoclave cure and from the application of mechanical load. Of particular interest is the demonstration of SRCT as a technique to enable direct, in situ, 3-D, non-destructive damage quantification to assist model development and provide model validation. In addition it has been identified that SRCT has the potential for full field analysis of strain re-distributions during damage growth.
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Published date: 30 September 2010
Keywords:
carbon fibres, matrix cracking, thermal properties, finite element analysis (fea), synchrotron x-ray tomography
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 178863
URI: http://eprints.soton.ac.uk/id/eprint/178863
ISSN: 0266-3538
PURE UUID: 7f6b5d4f-f920-41f2-af5d-f1db9bdd3d70
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Date deposited: 31 Mar 2011 11:03
Last modified: 14 Mar 2024 02:49
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Author:
P. Wright
Author:
A.J. Moffat
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