Test Apparatus to Determine the Shear Strength of a Composite Sandwich Beam Under a High Hydrostatic Load

Abstract

An apparatus for determining the strength of composite sandwich beam in which an enclosure and insertable bladder is provided. The apparatus comprises positioning a bladder within the enclosure. The beam to be tested is slid through a cutout or aperture of the enclosure with support feet holding the beam in place within the enclosure. The enclosure supports the bladder sides with one face of the bladder pressuring the composite sandwich beam. For testing, water is pumped under pressure through a fitting into the bladder. The tolerances between the beam, enclosure and an extrusion seal do not allow the bladder to squeeze outward with the result being measurable testing pressure on the face of the composite beam.

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Document Details

Document Type
Technical Report
Publication Date
Jul 17, 2007
Accession Number
ADD020298

Entities

People

  • Robert F. Doleski

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bearings
  • Composite Materials
  • Extrusion
  • Failure Mode And Effect Analysis
  • High Pressure
  • Hydrostatic Pressure
  • Inventions
  • Journal Bearings
  • Materials
  • Measurement
  • Patent Applications
  • Patents
  • Roller Bearings
  • Sandwich Panels
  • Shear Strength
  • Stress Concentration
  • Test Methods

Fields of Study

  • Physics

Readers

  • Materials Science
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Rocket Propulsion.