High power laser and explosive driven shock wave characterization in solids using fiber optic probes

G. A. Cranch; J. Grün; J. Weaver; J. K. Gran; M. A. Groethe; S. Compton; K. Fournier; B. Dunlop

doi:10.1117/12.2193907

28 September 2015 High power laser and explosive driven shock wave characterization in solids using fiber optic probes

G. A. Cranch, J. Grün, J. Weaver, J. K. Gran, M. A. Groethe, S. Compton, K. Fournier, B. Dunlop

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96341T (2015) https://doi.org/10.1117/12.2193907
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

Shock wave transmission and propagation in solid media is studied using fiber optic pressure and velocity probes. Shock waves are generated in two experiments using a high power laser facility as well as conventional explosives. Shock wave properties including peak overpressure, mass velocity, shock duration, impulse, arrival time and shock velocity are characterized using fiber tip interferometric displacement sensors and Fabry-Perot pressure sensors. Measurements are conducted in polymethyl methacrylate and limestone. The probes recorded shock pressures up to 0.1 GPa (1 kbar). Measurements from the fiber optic sensors are shown to be in close agreement with measurements from an electrical sensor based on a Dremin loop.

Citation Download Citation

G. A. Cranch, J. Grün, J. Weaver, J. K. Gran, M. A. Groethe, S. Compton, K. Fournier, and B. Dunlop "High power laser and explosive driven shock wave characterization in solids using fiber optic probes", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96341T (28 September 2015); https://doi.org/10.1117/12.2193907

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