The Measurement of Large Strains With Foil Resistance Strain Gages

Abstract

Gas factor changes in foil resistance strain gages were observed and measured. Errors due to these changes are discussed and corrections for the gages studied were determined. Residual volume changes during plastic deformation in 7039 Aluminum Alloy and S-7 tool steel were shown to be small and unmeasurable with the gages used. The gage factor changes were assumed to be the result of plastic work in the gage material. Estimates of the magnitude of the resistance changes due to plastic deformation in constantan were made using tension experiments on wires.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1983
Accession Number
ADA133687

Entities

People

  • Robert E. Franz

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aluminum
  • Aluminum Alloys
  • Electronics
  • Electronics Laboratories
  • Jet Propulsion
  • Materials
  • Mathematics
  • Measurement
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Physics
  • Strain Gages
  • Stress Strain Relations
  • Stresses

Readers

  • Computational Modeling and Simulation
  • Explosive Engineering.
  • Metallurgy