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Article Dans Une Revue Composites Science and Technology Année : 2010

High resolution tomographic imaging and modelling of notch tip damage in a laminated composite

P. Wright
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A. Moffat
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I. Sinclair
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S.M. Spearing
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Résumé

Synchrotron radiation computed tomography (SRCT) has been used to observe damage growth and enable micromechanical damage characterization in [90/0] carbon fibre-epoxy composite samples loaded in uniaxial tension to stresses ranging from 30% to 90% of the nominal failure stress. A 3-D finite element model has been constructed to predict crack opening displacements and shear displacements in the 0°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, , 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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Dates et versions

hal-00657647 , version 1 (08-01-2012)

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P. Wright, A. Moffat, I. Sinclair, S.M. Spearing. High resolution tomographic imaging and modelling of notch tip damage in a laminated composite. Composites Science and Technology, 2010, 70 (10), pp.1444. ⟨10.1016/j.compscitech.2010.04.012⟩. ⟨hal-00657647⟩

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