Nondestructive Evaluation of Fiber-Reinforced Composites with Acoustic Backscattering Measurements

Y Bar-Cohen; RL Crane

doi:10.1520/STP28489S

SYMPOSIA PAPER Published: 01 January 1982

STP28489S

Nondestructive Evaluation of Fiber-Reinforced Composites with Acoustic Backscattering Measurements

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Experimental studies of acoustic backscattering in the Rayleigh region (0.1 ≤ ka ≤ 1.0) from fiber-reinforced composites were conducted. A significant increase in backscattering was observed for those orientations which place the axis of the fibers or other discontinuities at normal incidence to the acoustic beam. Fiber orientations and the distribution of cracks within specific plies were easily mapped by this technique.

Author Information

Bar-Cohen, Y

Systems Research Laboratories, Inc., Dayton, Ohio

Crane, RL

Air Force Wright Aeronautical Laboratories, Wright-Patterson Air Force Base, Ohio

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Details

Developed by Committee: D30

Pages: 343–354

DOI: 10.1520/STP28489S

ISBN-EB: 978-0-8031-4849-9

ISBN-13: 978-0-8031-0695-6

Nondestructive Evaluation of Fiber-Reinforced Composites with Acoustic Backscattering Measurements

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