Accession Number:

ADA022804

Title:

Computational Predictions of Shock Diffraction Loading on an S-280 Electrical Equipment Shelter

Descriptive Note:

Memorandum rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1976-03-01

Pagination or Media Count:

49.0

Abstract:

The Los Alamos Scientific Laboratory, under contract to the BRL, utilized a three-dimensional, transient, hydrodynamics computer program, BAAL, developed at LASL, to compute the diffraction loading versus time caused by a one-dimensional 34.475 kPa 5.0 psi overpressure steady shock wave striking an S-280 Electrical Equipment Shelter. The results of this computation have been placed on a magnetic tape at the BRL. Copies of this tape are available on request. The tape includes an alphanumeric introduction describing the data on the tape and overpressure - time histories for each computational flow field cell that has a coincident face with either the shelter front, top, back, or side face. Also included on the tape is the time history of the resultant force due to overpressure and its effective point of application for each face. Although there are no direct experimental data available for comparison, the pressure - time histories generated appear to be quite good, with the possible exceptions of apparent pressure anomalies at the shelter edges where the flow undergoes a rapid 90 degree expansion, and the late - time pressures computed. Author

Subject Categories:

  • Computer Programming and Software
  • Structural Engineering and Building Technology
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE