EXPERIMENTS ON THE MEASUREMENT OF THE RESPONSE OF ROCK TO DYNAMIC LOADS

Abstract

The development of instrumentation techniques to measure dynamic stress and strain within rock subjected to impulse-type loads is presented. These techniques were to be applicable to the determination of rock response to nuclear explosive loadings. Electric resistance strain gages and piezoelectric stress gages were the sensing devices utilized. Transducers were em bedded in concrete test cylinders which were loaded by a plane wave generated by high explosive. The sensitivity of the piezoelectric gages utilized was too great for the stress intensities developed, and therefore satisfactory evaluation of the stress measuring technique was not possible. The material presented, summarizing the theoretical aspects of stress and strain measurement at an interior point in a solid, may prove valuable in future embedded gage installations.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1963
Accession Number
AD0405162

Entities

People

  • George B. Clark
  • Rodney D. Caudle

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Elastic Properties
  • Explosives
  • Materials
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Modulus Of Elasticity
  • Piezoelectric Materials
  • Resonant Frequency
  • Shear Modulus
  • Stress Waves
  • Stresses
  • Test And Evaluation
  • Transducers

Readers

  • Explosive Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Systems Analysis and Design