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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|
|Keywords:||composites,damage,microconstructure,optical coherence tomography|
|Research Areas:||Polymers/Polymeric Composites, Optical Metrology|
|PDF version:||Click here to retrieve PDF version of paper (425KB)|