Shock response of dry sand.

Technical Report · Wed Aug 01 04:00:00 EDT 2007

DOI:https://doi.org/10.2172/913227· OSTI ID:913227

Reinhart, William Dodd; Chhabildas, Lalit C ^[1]; Vogler, Tracy John; Brown, Justin L

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1. .

The dynamic compaction of sand was investigated experimentally and computationally to stresses of 1.8 GPa. Experiments have been performed in the powder's partial compaction regime at impact velocities of approximately 0.25, 0.5, and 0.75 km/s. The experiments utilized multiple velocity interferometry probes on the rear surface of a stepped target for an accurate measurement of shock velocity, and an impedance matching technique was used to deduce the shock Hugoniot state. Wave profiles were further examined for estimates of reshock states. Experimental results were used to fit parameters to the P-Lambda model for porous materials. For simple 1-D simulations, the P-Lambda model seems to capture some of the physics behind the compaction process very well, typically predicting the Hugoniot state to within 3%.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 913227
• Report Number(s): SAND2007-3524
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMPACTING
IMPACT SHOCK
MATHEMATICAL MODELS
ONE-DIMENSIONAL CALCULATIONS
RESPONSE FUNCTIONS
SAND
SHOCK WAVES
Sand-Testing.
Shock tests.