EikoTwin Digital Twin gets its 1.1 update !
Version 1.1 of EikoTwin Digital Twin is available! To obtain it, please contact your local EikoSim contact point. In particular, two structural improvements are on the menu: The appearance of the Step Designer, a dedicated interface for preparing your enhanced simulation. It will allow you to visualize and control the preparation phase of your simulation:…
How to make a speckle pattern suitable for Digital Image Correlation?
Context The principle of image correlation is based on tracking information from a so-called “reference” image in the following images, often called “distorted images”. All of the images form a film, from which we seek to extract a measure. We can therefore see the correlation of images as following points over the entire observed surface:…
Detection monitoring of cracks with Digital Image Correlation: a choice tool
Context Some structures have a long service life from commissioning to replacement. These structures, when they have a fundamental role, must be able to maintain their physical integrity throughout their service life. To do this, it is essential to ensure their reliability over time. In the case of such structures as metal water pipes, different…
Digital Image Correlation for lattice structures
Application of digital image correlation to tests on lattice structure obtained by additive manufacturing Interest in lattice structures is growing rapidly for the development of aeronautical and space components in particular. In addition to the significant mass gains they allow to consider, they offer the possibility of optimising their behaviour based on their constituent patterns.…
Digital Image Correlation for production monitoring – a collaboration with Renault and CETIM
Context As part of the large-scale production monitoring of automotive parts, it is essential to ensure that the reliability of the manufactured parts remains constant throughout the part’s production cycle. In order to make sure of this, parts are regularly sampled from production lines and tested to ensure that they still meet the required safety…
Validation of a mechanical test – a collaboration with MCE-5 DEVELOPMENT and MECATEST
EikoTwin DIC to validate your test kinematics, with MCE-5 DEVELOPMENT and MECATEST The purpose of a mechanical test is to submit a part or an assembly of parts to a specific stress in order to evaluate its elementary or in-service performances. The strong hypothesis, strengthened by theory or numerical simulation, is that the test bench…
Verification of the robustness of an Image Correlation software – a collaboration with SAMWELL Testing Inc.
The quality of displacement fields measurements using digital image correlation depends on many factors which can be: Internal to the software (implementation of the algorithm, shape functions used for describing displacements, image interpolation method…); External to the software (quality of the speckle pattern, resolution of cameras, quality of calibration, …) In order to validate the…
Previsualization with Blender of a complex structural test
Written by Matthieu Vitse Matthieu Vitse is a freelance scientific visualization expert. He has a PhD in computational mechanics from ENS Paris-Saclay, and his main activity now focuses on the post-treatment and visualization of large complex data simulations and experiments. More info at www.sciviz.fr (from Vitse et al. Toward virtual design and optimization of a…
Toward quantitative image analysis of Bird strike tests
Redactors : N. Cordero, F. Fremy, M.Beneck for Saint-Gobain, F. Mathieu for EikoSim Aircraft radomes produced by Saint-Gobain are made of composite materials. In addition to the usual design requirements that these structures must comply with (lightness, aerodynamic shape, impact resistance), they need to be RF transparent so that the systems they shelter may function. This…
Understanding and controlling the sources of discrepancy between tests and simulations
Adjustment and validation of simulations Simulations play an enhanced role in the design, the qualification and the certification of industrial products by forming the basis of strategic decisions. Therefore, the role devolved to experimental testing has also been modified. These tests were the essential part of the demonstration of compliance, but now they become references…
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