Virtual test set-up

DIC systems

FE-based Digital Image Correlation

Reality-inspired simulations

Simulation

correlation

EikoTwin Digital Twin — FEA Model Updating with DIC

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.

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Eikotwin Digital Twin Simulation Software With Eikosim Model Calibration

EikoSim's engineering partners and customers

EikoTwin DT (1) model calibration of simulation models using digital twin technology

Principle

Integration of test results for the validation of simulations.
Import of sensor measurements and direct comparison with the simulation result.

EikoTwin DT (2) model calibration using digital twin technology for model predictions

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.

Digital Twin technology, model calibration for digital model and digital representation

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

Using EikoTwin allowed us, through augmented simulation, to correct overly idealized boundary conditions, or to isolate regions of interest. The inverse identification proposed by Digital Twin also gave very promising results for reviewing the calibration and validation processes of the models by reducing the number of tests.

Ludovic Barrière

Project manager

Applications and tutorials

Thermomechanics on CFRP composite: tracking both crack and temperature with a single setup

On a CFRP specimen, EikoTwin combines stereo DIC and an infrared camera in a single setup: displacement, Lagrangian temperature and crack tracking on the same finite element mesh.

By Florent Mathieu, President & co-founder of EikoSim It is fairly easy to understand the technical value of measurement by digital image correlation. For the test engineer, it makes it possible to measure over a wider area, to better understand the physical phenomena at play, and to perform a non-contact measurement. The simulation engineer, for…

This article presents a multi-camera DIC instrumentation approach developed as part of a collaboration between Safran Group, EikoSim and Ansys. As part of the development of ever more high-performance aerospace components, the validation of simulation models is a crucial step in ensuring the reliability of designs. This is particularly true for parts subjected to complex…

Introduction Digital Image Correlation (DIC) relies on two main algorithmic families: local DIC (or subset-based) and global DIC (or FE-based). Both approaches produce displacement and strain fields, but their internal workings, strengths, and limitations can be different. First, it is important to note that in 90% of cases, the results of the two methods are…

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…

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…

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