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Publication Citation: Characterization of Composite Microstructure and Damage Using Optical Coherence Tomography

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Author(s): Joy P. Dunkers; C G. Zimba; Kathleen M. Flynn; Donald L. Hunston; R Prasankumar; X Li; J G. Fujimoto;
Title: Characterization of Composite Microstructure and Damage Using Optical Coherence Tomography
Published: January 01, 1999
Abstract: Optical coherence tomography (OCT) is a non-destructive and non-contact technique that images microstructure within scattering media. In this work, the versatility of OCT for non-destructive evaluation is demonstrated through imaging of composite microstructure and damage. Imaging of composite microstructure is demonstrated through tomographic reconstructions of an epoxy/unidirectional E-glass composite and an epoxy/0-90/ woven E-glass composite. Imaging of damage is shown by tomographic reconstruction of impact damage in a epoxy/unidirectional E-glass composite. The volumetric reconstruction of the composite is re-sliced along the thickness axis to reveal the propagation of cracks though the reinforcement layers. Advantages and limitations of OCT are discussed.
Citation: Conference on Nondestructive Evaluation of Aging Materials and Composites
Volume: 30
Keywords: composites;damage;microconstructure;optical coherence tomography
Research Areas: Optical Metrology, Polymers/Polymeric Composites
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