NON-DESTRUCTIVE EVALUATION OF COMPOSITE MATERIALS VIA THERMAL DIFFUSIVITY MAPPING
It is evident that use of composite materials in infrastructure is on the rise. Techniques are needed for in-situ testing and evaluation of these materials. Pulsed Video Thermography is an emerging non-destructive test method that offers inherent advantages over more conventional techniques. In the field of thermography, traditionally temperature maps on the surface have been employed for the non-destructive evaluation. In the authors' approach, they employ a fundamental material property, thermal diffusivity, for composite assessment. What is reported in this paper is their preliminary work on thermal diffusivity mapping using liquid crystals for a carbon-carbon composite. Results are presented for a flash diffusivity type of setup where pulsed lamp is used on one side, while the temperatures are recorded on the opposite side.
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Corporate Authors:
University of Arizona, Tucson
Department of Civil Engineering and Engineering Mechanics
1209 E 2nd Street
Tucson, AZ United States 85721-0072 -
Authors:
- Kulkarni, M R
- Brady, R P
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Conference:
- First International Conference on Composites in Infrastructure
- Location: Tucson, Arizona
- Date: 1996-1-15 to 1996-1-17
- Publication Date: 1996-1
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 1060-70
Subject/Index Terms
- TRT Terms: Carbon; Composite materials; Liquid crystal displays; Mapping; Nondestructive tests; Thermal diffusion; Thermographs
- Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials;
Filing Info
- Accession Number: 00762532
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 20 1999 12:00AM