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Soil mechanics

Dynamic electromechanical triaxial systems DYNATRIAX EmS

BS 1377:7 | ASTM D2850 | ASTM D4767 | BS 1377:8 | ASTM D5311 | ASTM D7181 | ASTM D3999 | AASHTO T0307

Dynatriax EmS system with 15 kN elctro-mechanical servo-actuation with reaction frame and accesories
Software. Saturation
Software. Selection of the cyclic stage and set up of the relevant parameters
Software. Set up of the different stages of the test
Software. Stress path
Software. Cyclic stress controlled
Software. Transducer calibration
Software. Manual control procedure
Software. Cyclic shear
Software. Tuning panel waveshape
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Main Features

  • Electromechanical Servoactuation, no need of compressed air or hydraulic power supply for the vertical force 
  • Capability to perform Static (effective stress and stress path), Dynamic and Unsaturated soil triaxial tests
  • Maximum dynamic load: 15 kN
  • Maximum static load: 10 kN
  • Triple-axes closed loop control of axial load/displacement, cell and back pressure
  • Automatic compensation of cell/back pressure during dynamic stage
  • Operating frequency more than 10 Hz (depending on test conditions)
  • Complete automation of all test stages using an high sensitivity closed loop PID feedback
  • Options available for bender elements testing and for local strain transducers
  • Standard and user defuned wave shapes which can mimic the real in situ measurements (earthquakes)
  • Test set-up by unique programmable multi-stage procedure. When a test is running, it is possible to access all parameters to expand and modify the stages as per the response of the specimen 
  • Manual and automatic emergency shut off function
  • Multitasking, user-friendly Windows-based software pre-installed on the PC
  • Extra-accurate transducers calibration adopting linear or polynomial regression or multi-coefficient linearization
  • tecnical specifications
    • Scroll the table
      • Maximum dynamic load: 15 kN
      • Maximum static load: 10 kN
      • Maximum vertical travel: 50 mm (different travels available on request)
      • Maximum testing frequency: more than 10 Hz (depending on testing conditions)
      • Volume change measurement: 100 cc volume change device with automatic flow inversion
      • Max sample diameter: 100 mm
      • Maximum confining pressure: 1000 kPa
      • Maximum back pressure: 1000 kPa
      • Close loop control frequency: 10 kHz
      • Input channels: 16 - Real resolution 16 bits
      • Voltage:  208-230 V, 50-60 Hz, 1 ph  or  110 V, 60 Hz, 1 ph
  • ordering info
    • 31-WF70E06
      Dynatriax EmS - Automatically PC controlled dynamic triaxial system with 15 kN Electromechanical Servoactuation. Supplied complete with PC, CDCtriax control and 16 channels data acquisition unit and software. 208-220V, 50-60 Hz, 1ph 

      31-WF70E04 
      Dynatriax EmS - Automatically PC controlled dynamic triaxial system with 15 kN Electromechanical Servoactuation. Supplied complete with PC, CDCtriax control and 16 channels data acquisition unit and software. 110V, 60 Hz, 1ph 

  • accessories
    • Triaxial cells
      \#triaxial-cells-for-advanced-applications\#
      \#double-wall-triaxial-cells-for-unsaturated-tests\#


      Sensors
      Submersible load cell
      31-WF7117
      5 kN capacity submersible load cell for accurate measurement, not affected by the friction of the ram and the cell pressure

      31-WF7118
      10 kN capacity submersible load cell for accurate measurement, not affected by the friction of the ram and the cell pressure

      31-WF7119
      25 kN capacity submersible load cell for accurate measurement, not affected by the friction of the ram and the cell pressure


      Transducer - LVDT
      31-WF7121
      Axial displacement transducer +/- 25 mm


      Pore pressure
      28-WF6300
      Pressure transducer 0-10 bar for pore pressure measurement

      28-WF6310
      De-airing block


      Volume change
      28-WF4412
      Automatic volume change apparatus, 100 cc

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