Hydraulic ram shock phase effects on fuel cell survivability.
Kappel, Leslie George
Power, Howard L. Jr.
Hess, Ronald A.
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Hydraulic ram concerns the dynamic loading and catastrophic failure of liquid filled fuel tanks impacted by high speed projectiles. Hydraulic ram is divided into two phases: shock phase and cavity phase. The shock phase was studied. Theoretical predictions of shock radius versus time were compared with experimental results. The theory was found to be reasonably accurate for blunt shaped projectiles. Included in the theory were predictions of shock pressure and pressure profiles behind the shock. Theoretical pressures are presented graphically but were not validated by experiment. Velocity decay of the projectiles in the liquid was investigated and correlated with theory to provide information for further studies of the cavity phase.
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