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Poly Axial True Triaxial Rock Testing System
The Poly Axial True Triaxial Rock Testing System is designed to test cubical specimens 12" × 12" × 12" and have the capability of applying orthogonal stresses in each of the three principal directions. The maximum major principal stress is 15,000 psi. This system provides independent control of all three principal stresses. Hydraulic pressures to fracture rock specimens can be applied at the center of the cubical specimen while controlling all three principal stresses. A second pressure port is also provided to measure specimen pore pressures. Ultrasonic velocity can be measure in any orthogonal direction as well as acoustic emissions while applying test stresses and hydraulic fracturing pressures. Three- dimensional event location software is also included. The Poly Axial True Triaxial Rock Testing System has 6 actuator blocks with 9 hydraulic cylinders each for a total of 6 cylinders. The hydraulic cylinders are actuated with up to 20,000 psi hydraulic pressure generated from three servo-controlled intensifiers. The maximum total force for each actuator block is approximately 1,500,000 lbs. The maximum stress on each direction is dependent upon the specimen size.
Features of Poly Axial True Triaxial Rock Testing System
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