MTS Dynamic Mechanical Material Test System Commissioned.
Acquired through research grants by
Dr. Dinesh Katti and Dr. Kalpana Katti
Click Above to See Pictures of the Device
Geotechnical Engineering Laboratory
The triaxial test system consists of a 22,000-lb capacity computer controlled load frame. The frame has a wide range of speeds. The data acquisition and control system allows us to program a large variety of loading conditions. The triaxial cell can accommodate samples up to a diameter of 4 inches. The cell has digital transducers for measuring cell pressure, backpressure, pore water pressure, submersible load cell and volume change. The transducers are connected to a high-speed data acquisition system. The master control panel used for applying cell pressure and back pressure can also be used for conducting permeability tests. A deaired water system is attached to the master control panel.
The load frame can also be used for conducting tests on geosynthetic samples and other materials.
Direct/Residual Shear Device
The system comprises of a square shear box with digital transducers for electronic data acquisition of shear displacement, vertical displacement and shear force.
We also have a conventional direct shear device with dial gages and
Top Consolidometer with Digital Transducer
We have four bench top consolidometers with digital transducers.
In addition, we have four consolidometers in free standing frames with dial gages.
The high-speed data acquisition system shown on the left is used for acquiring data from the triaxial shear, direct shear and the consolidation apparatus shown above. At this time, the system can scan eight channels simultaneously. The system is rated at up to 10000 scans per minute.
We have developed our own data acquisition software to allow us to perform specialized tests for research.
In addition, we have equipment for conventional geotechnical engineering laboratory tests, including:
Mechanical analysis, Atterberg limits, Compaction, Premeability etc.
Students in CE 316 Soil Mechanics Course Conducting Laboratory Experiments in the Geotechnical Laboratory.
For more information, contact:
Dr. Dinesh R. Katti, P.E.
Department of Civil Engineering
North Dakota State University
Fargo, ND 58105