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Proceedings Paper

Thermography technique for graphite/epoxy composite structures utilizing embedded thermal fiber optic sensors
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Paper Abstract

We investigated a thermal nondestructive evaluation (NDE) technique based on thermography that uses optical fiber thermal sensors to detect damage within a laminated graphite epoxy composite specimen. Composite samples manufactured for testing had fiber optic sensors embedded between layers and thermocouples attached to the exterior. A simulated impact system was used to induce damage of varying degrees into the samples and the damage was confirmed with C-span. The experimental procedures in addition to the test data obtained are presented. The results confirm that the fiber optic thermal sensors can not only detect the presence of damage, but can measure the severity of damage as well.

Paper Details

Date Published: 5 August 2003
PDF: 6 pages
Proc. SPIE 5056, Smart Structures and Materials 2003: Smart Structures and Integrated Systems, (5 August 2003); doi: 10.1117/12.483383
Show Author Affiliations
Anna Stewart, Univ. of California, Los Angeles (United States)
Gregory Paul Carman, Univ. of California, Los Angeles (United States)
W. Lance Richards, NASA Dryden Flight Research Ctr. (United States)


Published in SPIE Proceedings Vol. 5056:
Smart Structures and Materials 2003: Smart Structures and Integrated Systems
Amr M. Baz, Editor(s)

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