Stress Level Indicator for Real-Time, in-situ Stress Gauge Calibration.

Abstract

A dropbar system has been developed to produce stress pulses above 1 GPa with durations of about 500 microns. These pulses are of similar shape and amplitude to those encountered in large explosive tests. This system was to have been used to test a stress level indicator based on the electronic phase transition which occurs in cerium metal; however, due to the extreme reactivity of Ce, no gauges could be constructed. We observed reactions with epoxy over a period of several days which may explain the erratic results of a previous study. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 29, 1979
Accession Number
ADA090532

Entities

People

  • E. S. Gaffney
  • N. G. Mccaffrey
  • P. L. Riersgard

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Calibration
  • Diagrams
  • Dielectrics
  • Equations
  • High Pressure
  • Indicators
  • Materials
  • Materials Laboratories
  • Measurement
  • Phase
  • Phase Diagrams
  • Phase Transformations
  • Pressure Measurement
  • Resistance
  • Transitions
  • Yield Strength

Fields of Study

  • Physics

Readers

  • Coastal Oceanography
  • Materials Science and Engineering.
  • Rocket Propulsion.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Microelectronics - Microelectromechanical Systems