Self-sensing E-glass-fiber-reinforced composites

David Brooks; Simon A. Hayes; N. A. Khan; K. Zolfaghar; Gerard Franklyn Fernando

doi:10.1117/12.275729

6 June 1997 Self-sensing E-glass-fiber-reinforced composites

David Brooks, Simon A. Hayes, N. A. Khan, K. Zolfaghar, Gerard Franklyn Fernando

Proceedings Volume 3042, Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation; (1997) https://doi.org/10.1117/12.275729
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

Conventional E-glass fibers were surface treated to enable them to act as light guides for short distances. The reinforcing fiber light guides were embedded in glass fiber reinforced epoxy prepregs and processed into composites. The resultant composite was termed the self-sensing composite as any damage to these fibers or its interface would result in the attenuation of the transmitted light. Epoxy, silicone, fluoropolymer and sol-gel derived cladding materials were evaluated as potential cladding materials. RFLGs with a silicone coating was found to give the best light transmission. The self-sensing fibers were capable of detecting a 0.5 J direct impact. The feasibility of using the RFLGs for impact damage location was also demonstrated successfully as bleeding-light could be seen in the vicinity of the impact.

Citation Download Citation

David Brooks, Simon A. Hayes, N. A. Khan, K. Zolfaghar, and Gerard Franklyn Fernando "Self-sensing E-glass-fiber-reinforced composites", Proc. SPIE 3042, Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation, (6 June 1997); https://doi.org/10.1117/12.275729

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