INVESTIGATION OF CRATER GROWTH AND EJECTA CLOUD RESULTING FROM HYPERVELOCITY IMPACT OF ALUMINUM SPHERES ON THICK ALUMINUM TARGETS

Abstract

An experimental investigation was conducted of crater growth and ejecta cloud formation from the impact of 3.2 mm aluminum spheres on thick aluminum targets at 7 km/sec. Crater growth and transient shape were determined through sequential flash x-rays. Growth followed a decaying exponential pattern, and the tangent angle to the crater wall at the target surface remained virtually constant. Relationships between ejecta-cloud parameters and crater diameters were investigated. Cloud-edge motion was determined and an effort made to determine particle origin. Velocities of discrete particles in the cloud were determined.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0673515

Entities

People

  • Russell H. Smith

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Barometric Pressure
  • Cameras
  • Computer Programs
  • Converters
  • Generators
  • Image Converters
  • Instrumentation
  • Kerr Cells
  • Light Sources
  • Materials Laboratories
  • Photographs
  • Photography
  • Shape
  • Standards
  • X Ray Film

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Explosive Engineering.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers