Characterization of composite microstructure and damage using optical coherence tomography

Joy P. Dunkers; Carl G. Zimba; Kathleen M. Flynn; Donald L. Hunston; Rohit Prasankumar; Xing De Li; James G. Fujimoto

doi:10.1117/12.339850

8 February 1999 Characterization of composite microstructure and damage using optical coherence tomography

Joy P. Dunkers, Carl G. Zimba, Kathleen M. Flynn, Donald L. Hunston, Rohit Prasankumar, Xing De Li, James G. Fujimoto

Proceedings Volume 3585, Nondestructive Evaluation of Aging Materials and Composites III; (1999) https://doi.org/10.1117/12.339850
Event: Nondestructive Evaluation Techniques for Aging Infrastructures and Manufacturing, 1999, Newport Beach, CA, United States

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 degree 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 through the reinforcement layers. Advantages and limitations of OCT are discussed.

Citation Download Citation

Joy P. Dunkers, Carl G. Zimba, Kathleen M. Flynn, Donald L. Hunston, Rohit Prasankumar, Xing De Li, and James G. Fujimoto "Characterization of composite microstructure and damage using optical coherence tomography", Proc. SPIE 3585, Nondestructive Evaluation of Aging Materials and Composites III, (8 February 1999); https://doi.org/10.1117/12.339850

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KEYWORDS

Composites

Optical coherence tomography

Nondestructive evaluation

Spatial resolution

Mirrors

Tomography

Fiber optics

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