Strain Gage Techniques for Internal Strain Measurements in Boron-Epoxy Composites

Abstract

AT WAS DIRECTED TOWARD EVALUATING AND VERIFYING THE RESPONSE OF STRAIN GAGES EMBEDDED IN BORON- EPOXY COUPONS. The primary objective was to fabricate, test and evaluate approximately ninety boron-epoxy tensile specimens containing embedded strain gages. Secondary efforts included improvement of the embedded strain gage design, investigation of embedded single-wire gages, investigation of strain gage embedment and interlaminar shear effects and reporting of materials property data. The results indicate that strain gages embedded in boron-epoxy composite laminates perform in the same manner and with the same quality and reliability as strain gages bonded to surfaces. Embedding the strain gages did not affect the laminate structural properties but the embedded gages were affected, in a few cases, during specimen curing.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1973
Accession Number
AD0759548

Entities

People

  • R. L. Egger

Organizations

  • Boeing

Tags

Communities of Interest

  • Sensors
  • Space

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Air Force
  • Composite Material Fabrication
  • Composite Materials
  • Electrical Measurement
  • Epoxy Composites
  • Fabrication
  • Laminates
  • Materials
  • Materials Processing
  • Measurement
  • Plastic Explosives
  • Recording Systems
  • Self Assembly
  • Strain Gages
  • Test And Evaluation
  • Test Equipment

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials