Design and construction of a facility for research on the inelastic behavior of geologic materials / H.R. Hardy Jr., Fuels and Mining Practice Division. : M38-1/165-1965E-PDF

"This report describes the design and construction of a facility for research on the inelastic behavior of geologic materials. It includes the development of the following: a room-sized constant temperature enclosure capable of maintaining temperatures constant + to - 1/5 ° C; a programmable pneumatic-hydraulic axial loading system, which makes it possible to carry out creep, stress relaxation, constant rate of straining, constant rate of loading and cyclic loading experirnents; and a system for accurate measurement and recording of strain, stress, confining pressure and temperature, Also included are details on the preparation and strain gaging of test specimens"--Abstract, page ii.

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