NONDESTRUCTIVE EVALUATION OF FIBER COMPOSITES. OPPORTUNITY BRIEF NO. 21
Increased use of fiberglass has made practical quality control vital for manufacturers, consumers, and insurers. Inherently nonhomogeneous, fiber composites can contain hard-to-detect internal flaws. This process of nondestructive thermal testing to detect fiberglass flaws involves coating the material with a cholesteric liquid crystal compound and applying heat. The temperature rise causes the crystals to change color, and anomalies in the color indicate internal flaws. This project provides quantitative interpretation of the patterns of surface temperature and underlying flaws, and mentions acoustic and ultrasonic testing.
Massachusetts Institute of TechnologySea Grant Program, 77 Massachusetts Avenue
Cambridge, MA United States 02139
- Publication Date: 1980
- Pagination: 20 p.
- TRT Terms: Fiber composites; Flaw detection; Inspection; Materials selection; Nondestructive tests; Ultrasonic tests
- Old TRIS Terms: Materials evaluation
- Subject Areas: Marine Transportation; Materials;
- Accession Number: 00330454
- Record Type: Publication
- Report/Paper Numbers: MITSG 80-8
- Files: TRIS
- Created Date: May 21 1981 12:00AM