Virtual test set-up
Hardware connection
Simulation
correlation
Model-based image processing
Model-based image
processing
EikoTwin DIC
EikoTwin DIC is an image processing software dedicated to the link between measurements and numerical simulations.
It uses a patented measurement technology to provide automatic test-simulation comparison. It allows the determination of model errors and the identification of error sources
Principle
- Image processing (digital image correlation) based on the finite element mesh.
- Automatic calibration around the mesh.
- Multi-view (no technical limit to the number of cameras).
Features
- Many directly accessible fields: displacements, strains, residual (at pixel scale) on the surface of the part.
- Export of figures that can be used directly in your presentation.
Results
- Virtual sensors (displacement, strain gauges).
- Immediate test/simulation comparison based on finite element simulation results.
"Thermal" plug-in
- This add-on to EikoTwin DIC bridges the gap between kinematic measurements and infrared thermography.
- Import infrared images directly into your digital model
- Correlate the results with your thermomechanical simulation.
"Batch mode" plug-in
- This tool multiplies the power of EikoTwin DIC by allowing batch processing of image series.
- Process all your measurements in a batch process and increase the value you get from EikoTwin DIC.
Testimonials
Applications and tutorials
Digital Image Correlation (DIC) for vibration analysis
Digital Image Correlation (or DIC) is well-known for its static applications, but under the right circumstances, it is equally applicable to vibration testing. Here is as industrial example at Safran. As part of the development of increasingly high-performance aircraft actuators, Safran Landing Systems (SLS) must ensure the integrity of its systems during commissioning. With this…
How ArianeGroup improves simulation credibility with EikoTwin and DIC
Simulation credibility is a key aspect of the Virtual Testing concept. As the European leader in space launchers, Ariane Group participates with EikoSim in multiple Research and Development projects, including a RAPID R&D project (“MUTATION”) funded by the Direction Générale de l’Armement. This project aims at developing an industrial platform for test-simulation dialogue to meet…
Mechanical regularization in EikoTwin DIC
In EikoTwin DIC, the calculation of displacement fields is performed on the simulation mesh. However, as this mathematical problem is by nature ill-posed, there is a mechanical regularization parameter that allows the user to add mechanical conditions to the field measurements. Contrary to most digital image correlation software, at EikoSim we have chosen to use…
Digital image correlation for crack measurement
In the context of crack propagation tests on composite material, EikoTwin image correlation solutions were used to meet a customer need. A post-processing script, exploiting the measurement data from EikoTwin DIC, was developed by EikoSim to bring satisfaction to the customer with a tailor-made solution. This work is part of Paul Nicolino’s engineering internship at…
Digital image correlation for automotive structures
By Floriane Soulas, R&D Engineer at EikoSim Context In the context of monitoring large-scale production automotive parts, many parts are subjected to repeated tests to ensure their integrity once they are put into service. Thus, the test that we address in this paper is dedicated to the “gust of wind” tests of an opening structure (see…
Thermal plugins from the EikoTwin suite
By Clara Minguet, Research engineer at EikoSim In order to meet the specific needs of customers and to extend the use of the EikoTwin software suite to other fields of activity, EikoSim has developed two new optional plugins: the DIC and DT thermal plugins. As their names suggest, DIC thermal plugin can be used in…
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