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Dynamic Triaxial (Hydraulic/stress path)
This apparatus consists of loading frame, saturation board and control system. In loading frame, vertical load (10 kN) applies to sample by servo hydraulic system.
Cell pressure and back pressure at the top and bottom of the specimen are controlled by embedded regulators in saturation board & the magnitude of each one reads with the nearest 0.1 kPa by sensors. In undrained tests pore water pressure variation is measured and drained shear strength parameters can be determined.
The most important feature in servo hydraulic system is the ability of applying mechanical load up to 20 Hertz.
Control system is capable of applying vertical load (stress-control or strain-control) and All-around pressure (monotonic or cyclic). In apparatus software 4 successive phases can be defined that in each one deviator stress and All-around stress can be determined by user and the test results are shown as a graph during the test is performing. At the end, all readings are automatically saved as an Excel file. Result review of a specific test is not only possible in the excel software, but also in apparatus software.
Excluding regulators, all-around pressure can be controlled by mounted Servo pressure system on saturation board. Due to this, all stress paths can be performed in q-p. Also Isotropic and anisotropic consolidation can be performed.
This apparatus can be promoted to wave velocity measurement and unsaturated tests system.
|Global Material Testing Manufacturers|
|Dynamic Triaxial / Hydraulic 50-70 Designation: ASTM D5311|
|Product ID||MTM-HYDT 50-70|
|Function||Soil Triaxial Testing|
|Speciality||Dynamic Behaviour- High Frequency|
|Load Frame Capacity||20 kN|
|Max. Load||10 kN|
|Displacement Range||50 mm|
|Sample Diameter||50 & 70 mm|
|Measurement Precision||Load (1 N)|
|Displacement (0.01 mm)|
|Confining Pressure (0.1 kPa)|
|Pore Water Pressure (0.1 kPa)|
|Volume Change (0.3 cm3)|
|Control Types||Confining Pressure Control|
|Monotonic Stress/Strain Control|
|Cyclic Stress/Strain Control|
|User Defined Stress/Strain Control|
|Frequency||Up to 20 Hz|
|Data Logging Frequency||Up to 100 Points per Sec.|
|No. of Acquisition Channel||16 channel-16/24 bit|
|Data Transfer||10/100 Mb/s|
|Different Stress Path|
|Dynamic Shear Modulus|