A Study of the Feasibility of Constructing a High Pressure (4kBAR) Multiaxial Material Test Device.
Abstract
A study was conducted into the feasibility of constructing a fluid cushion, multiaxial loading device for testing concrete or other materials to high pressures. The requirements for the devices are: 1) three independently controlled stress axes, 2) maximum pressures in each axis to 4 kBar, 3) load application through fluid cushions to minimize undesireable boundary effects, and 4) cubical specimen sizes of 4 inches (10 cm) or greater. A number of possible design concepts were developed and critiqued. Of these two appear to hold promise for eventual design and construction. The most promising concept requires use of a preexisting conventional testing machine of at least 2 million lbs (8.9 MN) capacity. The second concept would be feasible for facilities not having a large loading machine. Both proposed concepts depend on the successful development of a bladder/seal fluid cushion patterned after that of Michelis' but having a larger size and increased pressure capacity. Means to measure specimen displacement following the approach of Michelis would also need to be developed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 12, 1986
- Accession Number
- ADA171672
Entities
People
- Richard H. Atkinson