Shock Loading Techniques for Composites

Abstract

The dynamic stress-strain of composite materials may be determined using Split Hopkinson Pressure Bar (SHPB) techniques. The method includes placing a composite between a first end of an incident bar and a first end of a transmitter bar. Next, a shock is induced proximate a second end of the incident bar. The shock may be induced by striking the second end with a striker bar or igniting an explosive proximate the second end of the incident bar. Next, the reflected and transmitted strain is measured as a function of time using at least one gauge disposed on each of the incident and transmitter bars. The dynamic shock loading response of the composite is measured using the measured reflected and transmitted strain. (3 figures)

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Document Details

Document Type
Technical Report
Publication Date
Sep 20, 2004
Accession Number
ADD020158

Entities

People

  • Ricardo J. Cardoso

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Attorneys
  • Composite Materials
  • Compression
  • Explosive Charges
  • Explosives
  • Gages
  • Geometry
  • Governments
  • Inventions
  • Materials
  • Mathematical Models
  • Strain Gages
  • Strain Rate
  • Transmitters
  • Undersea Warfare
  • United States
  • United States Government

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Mechanical Engineering/Mechanics of Materials.
  • Optical Fiber Sensing and Electromagnetic Propagation.