One-Dimensional Blast Wave Propagation
NORWEGIAN DEFENCE CONSTRUCTION SERVICE OSLO OFFICE OF TEST AND DEVELOPMENT
Pagination or Media Count:
The report is a summary of the results of a series of experiments on one-dimensional blast wave propagation in steeltubes, diameter 5 cm and 20 cm, in a concrete tube of diameter 80 cm and in a tunnel in rock of effective diameter 6 m. The blast waves originated from detonation of TNT charges placed in the center of the tubestunnel. Measurements of pressure time history, employing piezoelectric pressure transducers, show that frontpressure, impulse, positive duration and time of arrival scaled according to common one-dimensional scaling laws for small distances, LD, expressed in diameter units, and for longer distance gave deviations with LD more or less as parameter. The effects of varying wall roughness is not investigated in detail, but estimates of exponential damping constants are given.
- Civil Engineering