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4. Cyclic loading of samples under either load or strain Rock Test Equipment

Cyclic loading of samples under either load or strain Rock Test Equipment

Cyclic loading refers to the repeated loading of a sample.  All GDS systems can imply this loading either under load control, or under strain (displacement) control.  Load control will be via feedback from the load cell and displacement control will be via the feedback from the displacement transducer.  Load and displacement control can be performed by all GDS system.  The speed of the cyclic loading depends on the frequency performance (i.e. the dynamic performance) of the system in question.  Dynamic stress control is possible, but only available on the most advanced GDS dynamic because of the additional processing required to calculate the sample area during the cycles.  Please note: Some apparatus may require additional components or software modules to perform certain tests.

The following rock test equipment can perform the Cyclic loading of samples under either load or strain rock test:-

Unsaturated Back Pressured Shear Box
for cyclic loading of samples under either load or strain rock test

Hydraulic Load Frames for Rock
for cyclic loading of samples under either load or strain rock test

1000kN (1MN) / 2000kN (2MN) Static Compression Only Loadframe
for cyclic loading of samples under either load or strain rock test

Environmental Triaxial Testing System
for cyclic loading of samples under either load or strain rock test

Variable Direction Dynamic Cyclic Simple Shear
for cyclic loading of samples under either load or strain rock test

GDS Large Automated Direct Shear System (300mm)
for cyclic loading of samples under either load or strain rock test

Back Pressure Shearbox - High Pressure
for cyclic loading of samples under either load or strain rock test

Interface Shear Tester
for cyclic loading of samples under either load or strain rock test

Environmental Triaxial Automated System
for cyclic loading of samples under either load or strain rock test

GDS Small-Strain Hollow Cylinder Apparatus
for cyclic loading of samples under either load or strain rock test

GDS Shearbase System
for cyclic loading of samples under either load or strain rock test

GDS Back Pressured Shear Box
for cyclic loading of samples under either load or strain rock test

GDS Electro-Mechanical Dynamic Cyclic Simple Shear
for cyclic loading of samples under either load or strain rock test

GDS True Triaxial Apparatus
for cyclic loading of samples under either load or strain rock test

GDS Large Diameter Cyclic Triaxial Testing System
for cyclic loading of samples under either load or strain rock test

Virtual Infinite Stiffness Load Frames
for cyclic loading of samples under either load or strain rock test

Triaxial Automated System (Load Frame type)
for cyclic loading of samples under either load or strain rock test

Triaxial Testing System (Automated Stress Path type)
for cyclic loading of samples under either load or strain rock test

Advanced Dynamic Triaxial Testing System
for cyclic loading of samples under either load or strain rock test

GDS Enterprise Level Dynamic Triaxial Testing System
for cyclic loading of samples under either load or strain rock test

Hydraulic Load Frames for Soil
for cyclic loading of samples under either load or strain rock test