Virtual test set-up
DIC systems
Model-based image
processing
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
Designing optimized specimens for composite materials: from normative testing to simulation-assisted identification
This article is based on the M2 internship work of Antoine Vintache in collaboration with François Hild of the Laboratoire de Mécanique de Paris-Saclay, and presented at the ECCM21 conference [1]. This work is supported by ArianeGroup. In experimental mechanics, tests on composite materials are often based on standardized specimen geometries. These geometries – uniaxial…
RELEASE NOTES EIKOTWIN 2025.1
The release notes for version 2025.1 of the EikoTwin suite are now available. Find out what’s new! The EikoTwin 2025.1 release includes new features for all software in the suite! Find out about the main new features here. These improvements are also available in EikoTwin DIC and EikoTwin Digital Twin. Feel free to check out…
Crack tracking on a structure : practical use case in thermal fatigue @ Liebherr Aerospace
In the aerospace industry, where component reliability is critical, the study and tracking of cracks is of paramount importance. Liebherr Aerospace, a leading manufacturer of heat exchangers, sought EikoSim’s expertise for an in-depth study of crack development under extreme thermal fatigue loading. The study, detailed below, provides a comprehensive overview of the methods, results and…
Modal analysis validation – in practice
In a recent post, we mentioned how DIC can be used for modal analysis validation by comparing the measured field with a finite element simulation. A practical exercise was proposed to us by INTES: how to export results to a simulation pre-post, in this case that of the PERMAS software? In this case, we have…
Building simulation credibility: the validation of Ariane 6’s Dual Launch Structure
Ensuring the credibility of simulation models is a concern in all fields of engineering. In aerospace engineering, structural qualification is a crucial step in ensuring that critical components are capable of withstanding the most severe operational conditions. This process is essential to ensure the safety and reliability of systems during missions. This article focuses on…
Modal analysis: how can Digital Image Correlation (DIC) help?
Modal analysis is a key technique used in engineering to understand the vibratory behavior of mechanical structures. It enables us to determine the natural frequencies and modal shapes of a structure, which are crucial in ensuring that it does not resonate dangerously under specific operating conditions. Traditionally, this analysis has relied on the use of…
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