Simulation development for Silo Test Program (STP). Volume 1. Design and evaluation of a variable HEST (high explosive simulation technique) for STP 3. 5A experiment. Technical report, 11 January 1982-31 March 1984
In support of the Defense Nuclear Agency (DNA) Silo Test Program (STP), variable high-explosive simulation technique (HEST) was designed and evaluated to simulate the airblast environment resulting from a 1.95-kt (1/8-scale of 1 MT) nuclear surface burst over a pressure range of 500 MPa (5 kbar) to 7 MPa (1000 psi). The final design consisted of a variable HEST in which Iremite-60 explosive is used predominantly in the pressure range from 500 to 100 MPa, and 0.085 kg/m (400 grain/ft) primacord explosive is used in the pressure range from 100 to 7 MPa. The overburden height increases linearly with range from 0.64 to 1.15m. The cavity height increases linearly with the range from 38 mm at the 500-MPa location to 70 mm at the 35-MPa location. Beyond this point, the cavity height remains constant at 70 mm. The HEST simulator was used in the STP 3.5A experiment performed by WES at Fort Knox. On the basis of photopole, airblast, and near-surface soil-stress gage data, the impulse from the HEST agreed, to within measurement error, with the design goals for both short (10 ms) and long (90 ms) time frames. Hence, the full positive phase of a 1.95-kt surface burst was successfully simulated by the HEST.
- Research Organization:
- SRI International, Menlo Park, CA (USA)
- OSTI ID:
- 5898063
- Report Number(s):
- AD-A-163274/4/XAB
- Country of Publication:
- United States
- Language:
- English
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