A medium pressure flexible boundary cubical triaxial tester has been developed to measure the stress-strain behavior of powders over a wide range of loading conditions and stress paths. In this tester, gas or air pressure up to 35 MPa (5000 psi) can be applied to all the six surfaces of a 50.8 mm (2 inch) cube-shaped powder specimen via flexible rubber membranes. Hydrostatic triaxial compression (HTC) tests have been conducted on two test materials. Some material parameters of modified Cam-clay model were determined for the two test powders. The cubical triaxial tester worked well during these HTC tests in terms of pressure control, loading rate control, loading boundary conditions and deformation measurement.
|Paper - American Society of Agricultural Engineers
|Published - Dec 1 1997
All Science Journal Classification (ASJC) codes
- Agricultural and Biological Sciences (miscellaneous)