Virtual test set-up
DIC systems
FE-based Digital Image Correlation
Reality-inspired simulations
Simulation
correlation
EikoTwin Digital Twin
The EikoTwin Digital Twin is a highly effective tool to enhance simulation model calibration accuracy.
This innovative technology relies on digital models that are specifically calibrated using test data, ensuring that the resultant simulations provide highly accurate and reliable results.
Digital twin technology implements "augmented simulations", which use the measured data as boundary conditions, but also allow simulation-enabled model calibration of material model parameters to bring the simulation closer to the expected result.
EikoSim's engineering partners and customers
Principle
- Integration of test results for the validation of simulations.
- Import of sensor measurements and direct comparison with the simulation result.
Features
- Use of measurements to enrich the simulation model outputs.
- Creation of measured boundary conditions to release idealized conditions for model calibration.
- Export of a digital twin prototype simulation model enhanced with measurement information.
Results
- Quantification of virtual model errors due to boundary conditions.
- Automatic identification of the simulation parameters required (materials, etc.).
- Determination of the residual calibrated model error.
Testimonials
Applications and tutorials
EikoTwin v2026.1 – release notes
EikoTwin DIC The new version of EikoTwin DIC includes a brand new Python API, simplifies marker tracking, and enables new analyses. EikoTwin Vision We spent hours fine-tuning EikoTwin Vision’s behaviour to make it simpler, faster and more enjoyable to use. EikoTwin Digital Twin EikoTwin Digital Twin receives a host of improvements with more robust analysis…
EikoTwin DIC Python API demo
We are pleased to present our new Python API, designed to facilitate integration and automation of analyses with EikoTwin DIC. This API allows users to take full advantage of digital image correlation (DIC) results with customised post-processing. Its goal is to simplify our users’ workflows by providing a flexible and powerful interface for interacting with…
Validation of simulation models using DIC: Application to bird strike tests
In the aerospace and automotive industries, the resistance of structures to various high-speed threats is a guarantee of certifiability. In aerospace, certification for bird strike is a major issue for the safety and certification of equipment and systems. Tests are carried out not only to assess the structural integrity of materials, but also to validate…
Forming and DIC: measurement of large deformations
Experimental validation of forming processes, such as crimping, requires accurate characterization of local deformation fields, which can be achieved using DIC. A recent measurement campaign was conducted on an industrial part with severe geometric constraints, with an analysis area located on a section approximately 2 mm thick. Beyond the small size of the area of…
High-Speed DIC for Dynamic Analysis of Dashboard Opening during Airbag Deployment
This article showcases a use of high-speed DIC for validating the behavior of a dashboard opening. Passenger safety is a top priority in the automotive industry. In the event of a collision, the airbag must deploy quickly and effectively to protect the vehicle’s occupants. However, this ultra-fast process is directly influenced by the structure and…
Design of a thermomechanical test bench using virtual simulation: integration of a thermal chamber for coupled DIC/IR imaging
This article was written in collaboration with Thibaut Archer, researcher at ONERA. Setting up thermomechanical tests in a controlled environment is a major challenge for validating numerical models in structural mechanics. Optimum design of the test rig is essential to ensure accurate acquisition of displacement and temperature fields, via DIC and IR measurements, particularly when…
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