Underwater blast loading of a composite twisted rudder with FBGs

Mark Seaver; Stephen T. Trickey

doi:10.1117/12.786084

16 May 2008 Underwater blast loading of a composite twisted rudder with FBGs

Mark Seaver, Stephen T. Trickey

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70046G (2008) https://doi.org/10.1117/12.786084
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

32 Fiber Bragg gratings (FBGs) were embedded in a full size, composite twisted rudder to monitor internal strains during underwater blast loading. During final fabrication, the fibers leading to sensors were broken rendering the embedded sensors useless. Time domain reflectometry located the breaks and suggested a likely approach to avoiding such problems in the future. An additional 8 FBGs were surface mounted on the rudder and used to collect data during the blast loading events. Data were successfully collected at rates up to 9700 Hz during 3 blasts, with strains approaching 4000 με and strain rates of up to 13 ε/s.

Citation Download Citation

Mark Seaver and Stephen T. Trickey "Underwater blast loading of a composite twisted rudder with FBGs", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70046G (16 May 2008); https://doi.org/10.1117/12.786084

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