SIMILITUDE STUDY OF FLEXIBLE BURIED ARCHES SUBJECTED TO BLAST LOADS

Abstract

The objective of the study was to investigate and verify model-to-prototype scaling relations for blast loaded buried arches that respond both elastically and inelastically. Four geometrically similar, semicircular aluminum alloy arches with 4-, 8-, 12-, and 36-inch diameters were buried in dense dry sand and subjected to air-blast-induced loads on the surface. The tests were conducted at the Large Blast Load Generator located at the U. S. Army Engineer Waterways Experiment Station. The results of two series of tests, each consisting of 3 repeated shots, ranging from 70 to 300 psi, are presented. Within the range of parameters investigated, the scaling of the dependent variables were adequately verified. These variables included acceleration, velocity, displacement, thrust, and bending moment.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0666204

Entities

People

  • Jimmy P. Balsara

Tags

Communities of Interest

  • Counter WMD
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum
  • Aluminum Alloys
  • Blast
  • Blast Loads
  • Cartesian Coordinates
  • Civil Engineering
  • Concrete
  • Explosives
  • Materials Processing
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Recording Systems
  • Strain Gages
  • Stress Strain Relations
  • Test And Evaluation
  • Wave Propagation

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Nuclear Civil Defense.
  • Structural Dynamics.