DSS Direct Simple Shear System

Advanced fully automatic simple-shear apparatus with two high quality servomotor drives for static, cyclic and dynamic shear loads up to 10 kN.

This electro-mechanic, dynamic, cyclic machine is a high-quality but robust device, both mechanically and electronically. This includes a highly stiff frame and actuator system to compensate for any deformations during static or cyclic loading.

The machine includes two high-quality servomotor drives to perform vertical load tests (static and dynamic).

 

 

 

 

 


  • Highly stiff frame and actuator system to compensate for any deformation in static or cyclic loading
  • Suitable for drained and un-drained direct or simple shear tests
  • Double side horizontal and vertical ball-bearing guided cross-head for load piston and shear boxes
  • Closed-loop controlled height for constant volume conditions (K0-Conditions)
  • Closed-loop control of strain, load and displacement for static and cyclic shear stresses Sophisticated robust construction combined with high-quality mechanic and electronic components
  • The sample is mounted with a rubber-membrane (spiral wire or Teflon coated rings) and is connected to a tilt free, parallel guided lower shear box and a tilt free, vertical parallel-guided load piston
  • Highly-accurate displacement transducers for settlement and displacement (strain)

Shear load

Static and cyclic shear load: 5/10 kN
Frequency: 0 – 5 Hz and 0 – 15 Hz
Resolution: 0.0002 N

Axial load

Static axial load: 5 kN
(cyclic load as option)/10 kN
Resolution: 0.1

Shear rate

0.00001 – 3800 mm/min

Strain amplitude (under load conditions)

2 mm/5 Hz
10 mm/1 Hz

  • Not available
  • Not available
  • ASTM D-6528
  • Standard Test Method for: Consolidated Undrained Direct Simple Shear Testing of Cohesive Soils.

  • CEN ISO/TS 17892-10
  • Geotechnical investigation and testing -- Laboratory testing of soil -- Part 10: Direct shear tests

  • Detailed information will follow soon
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