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Modeling of Measured Target Pressure Profiles in Three Hypervelocity Impact Experiments.

DE200415006379

Publication Date	2000
Personal Author	Gerassimenko, M.
Page Count	16
Abstract	A 24 g aluminum sphere was shot at a sparse array of cylinders with nominal initial projectile velocity of 4 and 5 km/s. Pressure profiles were measured with cased carbon resistor gages at two locations in a projectile impacted water filled cylinder and two of its neighbors on three shots. The pressure maxima were in the 1-13 kbars range. The experiments are modeled with the ALE3D code and several techniques are used to concentrate zoning at places of interest. There is excellent agreement between the measured and calculated pressure profiles for two shots and good agreement for the third. Comparison of the calculated pressure profiles with those from more refined calculations for two shots suggest that we are near convergence with respect to zone size.
Keywords	Hyperverlocity impact Pressure measurement Pressure sensors Experiments Calculations Projectiles Tables (Data) Calibrations Measurements Pressure gages Modeling Pressure profiles Pinducers
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200419

Modeling of Measured Target Pressure Profiles in Three Hypervelocity Impact Experiments.

Modeling of Measured Target Pressure Profiles in Three Hypervelocity Impact Experiments.
DE200415006379

Publication Date	2000
Personal Author	Gerassimenko, M.
Page Count	16
Abstract	A 24 g aluminum sphere was shot at a sparse array of cylinders with nominal initial projectile velocity of 4 and 5 km/s. Pressure profiles were measured with cased carbon resistor gages at two locations in a projectile impacted water filled cylinder and two of its neighbors on three shots. The pressure maxima were in the 1-13 kbars range. The experiments are modeled with the ALE3D code and several techniques are used to concentrate zoning at places of interest. There is excellent agreement between the measured and calculated pressure profiles for two shots and good agreement for the third. Comparison of the calculated pressure profiles with those from more refined calculations for two shots suggest that we are near convergence with respect to zone size.
Keywords	Hyperverlocity impact Pressure measurement Pressure sensors Experiments Calculations Projectiles Tables (Data) Calibrations Measurements Pressure gages Modeling Pressure profiles Pinducers
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200419