Development of Physical Techniques for the Non-Destructive Evaluation of Polymers
Abstract
Interfacial gaps between fibre and matrix materials in glass fibre reinforced composites influence both the distribution and phase properties of the reflected light. An ultrasound schlieren system has been used to model the optical reflection properties and visualize the wavefront trajectories for small interfacial gaps(lambda/30). Quantitative estimates of the reflected light intensity for TE and TM modes, and the nature of the reflected phase properties, has been obtained from the characteristic matrices of tunnel and dielectric films. It is demonstrated that complete information about interface geometry, and hence debond geometry, can be derived from the study of the distributions of transmitted and reflected light.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1986
- Accession Number
- ADA173852
Entities
People
- J. P. Sargent
- K. G. Ashbee
- P. A. Gass
Organizations
- University of Bristol