THE EFFECTS OF HIGH PRESSURE ON FOIL STRAIN GAGES.

Abstract

This paper shows the effects of fluid pressures to 140 ksi on four different types of SR-4 foil-type strain gages. Linear pressure-strain curves were obtained for these gages mounted on flat surfaces of tungsten, steel and aluminum specimens. The inverse slope of the pressure-strain curves is compared with the compressibility constant 1-2nu/E as calculated from experimentally determined values of E and nu. Experimental results show the percent deviation between the constants to be a function of the material, being greatest for tungsten and least for aluminum. Temperature effects, as a function of the rate of applied pressure, are investigated. The types of gage failures encountered along with photomicrographs showing probable causes are presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1964
Accession Number
AD0611211

Entities

People

  • R. V. Milligan

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Compressive Properties
  • Elements
  • Gages
  • High Pressure
  • Materials
  • Metals
  • Strain Gages
  • Tungsten

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Mechanical Engineering/Mechanics of Materials.
  • Regression Analysis.