Open AccessPolarization-sensitive optical coherence tomography for photoelasticity testing of glass/epoxy composites
Author(s) -
Jaewon Oh,
Seung-Woo Kim
Publication year - 2003
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.001669
Subject(s) - photoelasticity , epoxy , optical coherence tomography , materials science , birefringence , optics , composite material , polarization (electrochemistry) , ultimate tensile strength , stokes parameters , scattering , physics , chemistry , solid mechanics
We measure the spatial distribution of the mechanical stress induced inside translucent glass/epoxy composites by means of polarizationsensitive optical coherence tomography. The Stokes parameters determined from two orthogonal polarization components of the backscattered light allow the internal stress to be identified in terms of its magnitude and principal direction based on a birefringence light scattering model of glass/epoxy composites. Measurement examples show the particular case of stress concentration near a through hole and the internal structural damages caused by excessive tensile loading.