The ETH Zürich – on of our longstanding customers – provides on the following website their research project. They analyse the accuracy of digital image correlation within the scope of reinforced concrete. To the project members belong Prof. Dr. Walter Kaufmann and Dr. Jaime Mata Falcón.

Full field strain measurement in rebar tension

test: failure phase.

Ravi Ranade

Test of a ECC (Engineered Cementitious Composites) Beam under 4-point loading.

 

Ravi Ranade

DIC measurement of a rectangular tensile specimen of High Volume Fly Ash ECC, loaded along the horizontal axis.

 

National Institute of Standards and Technology

The National Institute of Standards and Technology helps to measure stress in bridges. By using Digital Image Correlation they try to understand, what impact stresses and strains have to the failure or damages (tragic collapse) on the metal connectors for bridges.

 

The film shows a DIC Measurement using Vic-3D on a concrete beam during a three point bending test. The first crack opening <1µm is located at the lower right side of the beam.

Final conditions: Over the entire length of the concrete beam several cracks have formed.

 

The correlation of an earthquakesimulation

was measured with the Vic-system and high speed cameras.

Several concrete slap was stockpiled on

a shakertable for the experimental setup.