The GDS Automated Direct Shear System (GDSADS) testing system is a
fully computer automated direct and advanced shear test system.
GDSADS has been designed to comply with international standards of
test execution and data presentation. The system is controlled by
the user’s PC (running Windows) and GDSLAB control and acquisition
software.
Download full
specification datasheet as
pdf
[323kb]
The GDSADS system shown above (with simple shear actuator upgrade)
is a fully self contained system with no requirements for compressed
air or hanging weights. Normal (axial) and shear forces are applied
using GDS electro-mechanical force actuators. The use of GDS Force
actuators makes the system very flexible, each axis (normal or
shear) can be controlled in displacement (strain or velocity) mode
as well as load or stress mode. As well as standards based direct
shear testing the advanced shear module will allow tests such as
creep or hydration tests to be carried out under load or stress
control.
The operator chooses the required type of test from a test menu be
it a direct or advanced shear test.
The test
proceeds automatically with all test data being saved to a file.
On-line graphics are presented in Windows with up to three graphs
displayed together with a block of
current live test data. (Tests can proceed overnight and during
weekends and holidays).
The test can
run from a dedicated computer to each test station or using multiple
stations per computer.
The optional
GDSLAB Reports for post-test processing and presentation to
National/International Standards can also be added to the system.
