Dynamic Cyclic Simple and Direct Shear Apparatus (DSS)

Description

The VJ Tech Dynamic Simple & Direct Shear System is an advanced, versatile testing solution expertly designed to conduct a variety of shear tests, including Dynamic Simple Shear, Direct/Residual Shear, and Direct Simple Shear.

This system features two precision electro-mechanical actuators that facilitate both horizontal and vertical movements. These actuators are seamlessly controlled by the state-of-the-art Dual Axis Dynamic Servo Controller (DSC3000MM), which connects to a PC via Ethernet or USB, ensuring user-friendly operation and robust data management via our Clisp Studio Software Module.

The Dynamic Simple & Direct Shear System is enhanced by its interchangeable assembly options, allowing the user to switch between Direct Shear and Simple Shear setups based on their specific testing requirements. It is especially suitable for conducting cyclic controlled tests, thanks to its ability to generate a variety of waveforms such as Sine, Square, Triangular, Haversine, Rectangular, and Saw Tooth, in addition to accommodating User Defined waveforms.

The System can be used for either:
• a Direct/Residual Shear test
• a Simple Shear test with Active height control
• a Cyclic Simple Shear test with a cyclic horizontal force applied to the specimen with constant Vertical stress on the specimen
• a Cyclic Simple Shear test with a cyclic horizontal force applied to the specimen with constant specimen height
• a Cyclic Simple Shear test with cyclic horizontal displacement applied to the specimen with constant Vertical stress
• a Cyclic Simple Shear test with cyclic horizontal displacement applied to the specimen with constant specimen height

Main Features

• High Stiffness with low compliance
• Capable of Direct/Residual Shear tests using water carriage assembly supplied as standard
• Capable of static & cyclic Simple Shear tests using the stainless steel/hard anodised assembly
• 10kN Vertical and Horizontal Load
• Active height control
• Closed Loop Control
• Adaptive PID (Peak and Trough Control)
• USB or Ethernet connectivity for PC Control
• High Speed sensor conversion (24-bit, 500Hz)
• Electro-mechanical control using the DSC3000MM for Vertical and Horizontal loading
• Data Logging Rate (200 Points/Cycle or 500 Points/Sec)
• Full control from a PC (running Clisp Studio)
• Waveforms available: Sinusoidal, Triangular, Square, Haversine, Saw Tooth, User Defined
• Supplied with all transducer and load cell brackets
• Low friction retaining rings for specimen confinement when conducting simple shear tests
• Pore pressure measurement (optional)

Specifications

Tests Performed

• Cyclic Simple Shear test (various control methods available in both axis in force, displacement, stress and height control)
• Static Simple Shear test (with active height control)
• Direct Shear
• Residual Direct Shear

Standards

Downloads

Datasheet (PDF)

Ordering Information

Main System Components

Transducers

Accessories*

* Direct Shear Assembly Boxes are available for square or circular samples, from 60mm up to 100 mm. (see ShearSCAN Pro datasheet

Optional Accessory for Local Strain Measurement

Software