A LOADING SYSTEM FOR THE INVESTIGATION OF THE INELASTIC PROPERTIES OF GEOLOGIC MATERIALS
THIS PAPER DESCRIBES THE THEORY AND DEVELOPMENT OF A LOADING SYSTEM FOR THE LABORATORY INVESTIGATION OF THE INELASTIC PROPERTIES OF SMALL ROCK AND MINERAL SPECIMENS UNDER A VARIETY OF LOADING MODES, INCLUDING CONSTANT LOAD, INCREMENTIAL LOADING, AND CONSTANT RATE OF LOADING. THE APPLICATION OF BASIC FEEDBACK CONTROL THEORY TO THE DESIGN OF THE CONTROL SYSTEM IS OUTLINED, ALONG WITH DETAILS OF THE CONSTRUCTION AND TESTING OF THE COMPLETED SYSTEM. THE PROBLEM OF OBTAINING UNIFORM LOADING OF CYLINDRICAL TEST SPECIMENS UNDER COMPRESSIVE LOAD IS DISCUSSED, AND DETAILS OF A SPECIAL SPECIMEN LOADING JIG DEVELOPED FOR THIS PURPOSE ARE DESCRIBED. /AUTHOR/
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Supplemental Notes:
- No 402, pp 232-265, 21 FIG, 2 TAB, 20 REF
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Authors:
- Hardy, H R
- Publication Date: 1965-10
Media Info
Subject/Index Terms
- TRT Terms: Compression; Crash investigation; Feedback control; General surface features of the earth; Inelastic stress; Loads; Minerals; Physical properties; Rocks; Specimens; Standardization; Studies
- Uncontrolled Terms: Cylinders; Inelastic action; Loading
- Old TRIS Terms: Geologic formations; Jigs; Rock properties
- Subject Areas: Geotechnology; Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00234157
- Record Type: Publication
- Files: TRIS
- Created Date: Sep 5 1994 12:00AM