Passive Thermal Nondestructive Flaw Detection in Composites,
Abstract
The use of passive thermal nondestructive testing for flaw detection in composite materials has been studied. Using implanted TFE and natural defects in fiberglass/epoxy and graphite/epoxy, techniques for generating and monitoring surface temperature distributions on composites were developed and refined. A radiant heat source was constructed to provide a uniform heat input to the back surface of the specimens while the temperature field on the front surface was visualized using liquid crystals. It was found that most internal defects can be found easily because of their effect on the surface temperature field.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1979
- Accession Number
- ADA303236
Entities
People
- Dale W. Wilson
- John A. Charles
Organizations
- University of Delaware