Dynamic Simple Shear (3D Saturation)
In this apparatus shear is applied to sample in two horizontal direction perpendicular to each other (stress-control or strain-control) by hydraulic jack system in monotonic or cyclic way. In vertical direction keeping strain, volume or normal stiffness constant is possible by helping servo-neumatic system. Low friction in this apparatus provides K0 condition in consolidation level & plane strain in shear applying level. Apparatus specifications are conformed to ASTM D6528. The current apparatus includes pressure board and is capable to saturate specimen before the test runs. Reading pore water pressure in undrained condition is done by pressure board. The apparatus software is able to perform 4 phases in all 3 directions that each one can comply with a different stress path in τ-σv. All stages including application of each phase and result reading are conducted automatically by the software and at the end, time, phase number, cycle number, load and displacement in 3 directions with date and test specifications are saved as an Excel file in apparatus memory. Therefore, user errors are eliminated by this method. This apparatus can be promoted and equipped to measure wave velocity, suction control and moisture, and perform Interface Test.
Technical Specifications
Global Material Testing Manufacturers | |
Dynamic Simple Shear 3D (Saturated) Designation: ASTM D6528 | |
General Info. | |
Product ID | MTM-DSS 3D-SAT |
Software | MTM-DSS |
Function | Soil Simple Shear Testing |
Speciality | Dynamic Loading, in Constant Volume/ Stress/ Stiffness Condition |
Specifications | |
Load Frame Capacity | 20 kN |
Max. Load | 5 kN in Normal/Shear Direction |
Displacement Range | 25 mm |
Saturating Board Capacity (Optional) | 10 bar Pressure |
Sample Diameter | 70 & 100 mm |
Measurement Precision | Load (1 N) |
Displacement (0.01 mm) | |
Pore Water Pressure- Optional (0.1 kPa) | |
Volume Change (0.1 cm3) | |
Control Types | Monotonic Stress/Strain Control in 3D |
Cyclic Stress/Strain Control in 3D | |
Constant Normal Stiffness Control (Otional) | |
User Defined Stress/Strain Control | |
Frequency | Up to 1 Hz |
Data Logging Frequency | Up to 100 Points per Sec. |
No. of Acquisition Channel | 16 channel-16/24 bit |
Communication Port | Ethernet |
Data Transfer | 10 to 100 Mb/s |
Capabilities | True Shear Deflection |
Anisotropic Consolidation | |
Saturating System (Optional) | |
Liquefaction Assessment | |
Constrained Modulus (M) | |
Shear Stiffness Modulus; Maximum & Degradation Curve | |
Damping Ratio |