A Deep Hole Stress Measurement Device

Abstract

The report describes the work done on the development of a deep hole stress measurement device. The intention was to field test the device. The report describes the mechanical design, the development of the telemetry and control systems, and the considerable effort spent on studying the problems associated with residual stresses in in situ rocks and their effects on stress measurement techniques. Data reduction from the device has also received a great deal of attention. Three different approaches were tried and these are also described in the report.

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Document Details

Document Type
Technical Report
Publication Date
Jul 10, 1974
Accession Number
AD0783304

Entities

People

  • Earl R. Hoskins
  • Edwin H. Oshier

Organizations

  • South Dakota School of Mines and Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programs
  • Finite Element Analysis
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Strain Gages
  • Stress Concentration
  • Stress Strain Relations
  • Stresses
  • Tectosilicates
  • Three Dimensional
  • Two Dimensional
  • Yield Strength

Readers

  • Aerospace Test and Evaluation
  • Geotechnical Engineering.
  • Systems Analysis and Design