VJ Tech - Dynamic Simple Shear with Confining Pressure System
From Soil & Rock Testing Products
The VJ Tech Dynamic Simple Shear Apparatus with Confining Pressure (DSS-C) utilises 2 electro mechanical dynamic actuators for applying the vertical and horizontal loads to the sample which is held under Pressure in an adapted Triaxial type Cell or a sample contained within Confining Rings and no Confining Pressure
The 2 electro mechanical dynamic actuators are con...
The 2 electro mechanical dynamic actuators are controlled by the Dual Axis Dynamic Servo Controller (DSC3000MM) which is connected to a PC. The vertical and horizontal displacements can be measured with either LSCT Transducers or Encoders which are part of the servo motors. The maximum range of travel in each axis is protected by limit switches and strain rate is easily set from the PC.
Back Pressure and Cell Presssure are controlled and measured using Pro Hydraulic APCs. The Vertical and Horizontal Loads and Pore Water Pressure are measured via the DSC3000MM.
The controlling software (Clisp Studio csDYNSS-C) enables all stages of the test (Saturation, Consolidation (Isotropic, Anisotropic or K0), Static Loading, Cyclic Shear (Stress or Strain) or Liquefaction) to easily be set up and run.
Features:
- Ethernet or USB PC Connection
- Horizontal Force Actuator (consisting of a Servo Motor and Limit Switches)
- Vertical Force Actuator (consisting of a Servo Motor and Limit Switches)
- Confining Cell for sample with internal Load Cells (note Cell is capable of 2 MPa (290 psi) Pressure)
- Axial and Shear stress-strain control
- Accurate encoder control of axial and shear displacement
- Sample Assembly Kits available:
- Skirted Base Pedestal and Top Cap (70 mm (2.75 inch) or 100 mm 4 inch) diameter sample size)
- Confining Ring Base Pedestal and Top Cap 70 mm diameter sample size
- The following tests can be performed
- Saturation, Consolidation and Static Load Control
- Saturation, Consolidation and Dynamic (Cyclic) Shear Control
- Saturation, Consolidation and Liquefaction
specifications
Frequency Range 0.0001 - 10.0000 Hz (upgradeable to 10.0000 Hz)
Max. Dynamic Load +/- 10 kN
Max. Horizontal Travel +/- 20 mm
Max. Vertical Travel +/- 15 mm
Max. Confining Pressure Up to 2000 kPa
Max. Back Pressure Up to 2000 kPa
Sample Diameter 70 mm (or 100 mm on request)
Nominal Sample Height 26 mm (or 38 mm for 100 mm)
PC Interface USB or Ethernet
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