KQ Measurements with Rheometrics Mechanical Spectrometer

Abstract

A testing method to measure the fracture toughness properties KO, which is related to a specific sample geometry and dimensions (half-inch compact tension), has been established using the Rheometrics Mechanical Spectrometer (RMS) as the loading instrument. This particular sample size was chosen so that the testing could be incorporated as part of a 50 gram evaluation scheme which was designed to provide systematic, preliminary properties information of new resins. The RMS was chosen for the experiment because of its unique temperature capabilities. Neat specimens of Narmco-5208 Epoxy have been fracture tested at temperatures between -150 degrees C to 250 degrees C and interesting fracture behavior was observed. The fracture surfaces relating to these fractures were studied using Scanning Electron Microscope.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1982
Accession Number
ADA117903

Entities

People

  • C. Y-c. Lee
  • W. B. Jones Jr.

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Air Force Facilities
  • Composite Materials
  • Control Panels
  • Crack Propagation
  • Crack Tips
  • Epoxy Composites
  • Geometry
  • High Temperature
  • Low Temperature
  • Materials
  • Materials Laboratories
  • Measurement
  • Microscopes
  • Test And Evaluation
  • Test Methods

Readers

  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems