Simple Shear Systems

The precise electromechanical drive, with its high resolution and 1 ms closed loop control rate, generates closed-loop strain and stress controlled static axial load and strain, as well as stress controlled shear forces.

The sample is mounted in a reinforced rubber-membrane connected to a tilting free parallel guided lower shear frame and a vertical parallel-guided load piston (also free from tilting).

Advanced fully automatic simple-shear apparatus for saturated and unsaturated tests for static shear loads up to 10 kN.

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For simple shear tests under saturated and unsaturated conditions
Constant volume conditions (K0-Conditions)
Load independent shear rates (shear stress optional)
Highly precise and stiff load transducer for normal and shear force
Highly accurate displacement transducers for settlement and displacement (strain)
Material of specimen adapter:
- stainless steel standard or customized specimen sizes are available
- Two pore-water ports are situated at the top and bottom sample adapters for saturated conditions
Applicable for automatic test control and monitoring of parameters and evaluation with shear software modules

Circular simple shear boxes:

Ø 50.0 mm, 20 cm2
Ø 60 mm, 28.27 cm2
Ø 63.0 mm, 31.2 cm2
Ø 66.8 mm, 35 cm2
Ø 71.4 mm, 40 cm2
Ø 79 mm, 50 cm2
Ø 94.4 mm, 70 cm2

Option: Low cyclic version

Normal force (standard)	5 or 10 kN
Max. shear force (standard)	5 kN, optional 2 or 10 kN
Max. shear displacement	20 mm
Spindle lift and vertical clearance	220 mm
Axial displacement transducer	10 mm
Settlement	25 / 0.001 mm
Accuracy class	0.1%
Resolution	0.00001 kN
Shear rate	30 – 0.000001 mm/min