Accession Number:

ADA063562

Title:

Blast Response of Lattice Mast - Event Dice Throw.

Descriptive Note:

Technical paper,

Corporate Author:

DEFENCE RESEARCH ESTABLISHMENT SUFFIELD RALSTON (ALBERTA)

Personal Author(s):

• Laidlaw,B. G.

Report Date:

1978-12-01

Pagination or Media Count:

37.0

Abstract:

Experimental results are presented for the response of a 30 foot high lattice mast structure to air blast loading in the 628 ton ANFO ammonium nitrate - fuel oil explosion known as Event Dice Throw which was held in October, 1976 at the White Sands Missile Range, New Mexico, U.S.A. The tubular seamless steel space frame mast, with an eccentric side antenna, responded in the elastic range under a free-field overpressure of 10 psi. No permanent deformations of the structure were observed. Analysis of the data generated has shown that there is a good agreement between measured results both static and dynamic and those predicted using a design procedure and associated computer code developed by Martec Limited, Ocean Science and Engineering Consultants formerly Can Plan Oceanology Ltd., Halifax, Nova Scotia, Canada, thereby validating the procedures. Previously established analysis procedures developed by Defence Research Establishment Suffield, Alberta, Canada DRES also produced an acceptable correlation between theoretical and experimental strains. In both cases the DRES computer code TDCCP Transient Drag on Circular Cylinders and Plates was used ans has been shown to provide very reasonable air blast loading for the theoretical analysis. Author

Descriptors:

• *AIRBURST
• *BLAST LOADS
• *FUEL OIL
• *AMMONIUM NITRATE
• COMPUTER PROGRAMS
• CANADA
• OVERPRESSURE
• STEEL
• STRUCTURAL RESPONSE
• ANTENNAS
• MASTS
• STATIC TESTS
• DYNAMIC TESTS
• TUBES

Subject Categories:

• Ammunition and Explosives
• Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE