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GDS LDCTTS |
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What is it? |
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The GDS Large Diameter Cyclic Triaxial Testing
System (LDCTTS) is hydraulically actuated with a large diameter
triaxial cell suitable for testing samples with large particle
sizes such as railway ballast. The system is capable of both
monotonic (static) and dynamic triaxial tests as well as other
advanced triaxial tests usually expected from a GDS system.
Using GDSLAB software with optional test control modules, GDSLDCT
can run tests such as stress paths, slow cyclic, dynamic cyclic and
K0, all under PC control. |
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Download full
specification datasheet as
pdf
[657kb] |
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| What are its
uses |
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The basic system consists of
the following major components:
- GDS 10Hz hydraulic load frame
(100kN/200kN)
- Hydraulic power pack to supply the load
frame
- GDSDCS (dynamic control system) for data
acquisition and control
- GDS single channel pneumatic regulator
for cell
pressure
- Optional GDS dual channel pneumatic
regulator for
both cell pressure and back pressure (in this case,
single channel device above is not required)
- GDSLAB data acquisition and control
software
- The system is controlled by the user’s PC
running MS
Windows® and GDSLAB software.
The system is controlled by the user’s PC
running MS Windows® and GDSLAB software.
The operator chooses the type of test from a test menu (eg UU, C-U,
multi-stage, dynamic cyclic, stress path etc) and then enters the
test parameters (of cell pressure, back pressure,
testing rate and so on) and test termination conditions. The test
then proceeds automatically with all test data being saved to a
file. On-line graphics are presented with up to three graphs
displayed together with a block of current live test data. The
computer directly controls all parameters for the test in addition
to logging these parameters to the PC hard drive. Of course,
additional transducers
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| GDS
Instruments is an ISO 9001:2000 credited company. |
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