Safran Ceramics trusts EikoSim with the “Thermal” plug-in
Benjamin Lacombe is a Mechanical Design Engineer at Safran Ceramics. He tells us about his experience with EikoTwin DIC and the development of the “Thermal” plug-in. « I work at Safran Ceramics, Safran group’s center of excellence for high-temperature composites. We are in charge of developing high-temperature solutions for tomorrow’s aircraft. We conduct a large number…
Technical functionality: selection of the measurement mesh
On EikoTwin DIC, the measurements are directly expressed on the simulation mesh. In order to choose which areas of interest for the test are visible to the camera(s), the so-called measurement mesh must first be selected. Indeed, this mesh will be the one where the results will be calculated. It is, therefore, essential to select…
Simulation validation with EikoTwin DIC
Simulation validation with EikoTwin DIC relies heavily on image processing. Image analysis methods provide full-field test data that can be used to validate and improve your simulation. Using the unique “Model-Based testing” method, EikoTwin DIC allows measuring displacements and strains of the observed parts directly on the simulation mesh. Thus, you will be able to…
Hybrid calibration: a robust alternative to self-calibration
Introduction This article is written as a complement to the article on good calibration practices recently published on our website. In general, it is very often possible to calibrate the camera system in EikoTwin DIC thanks to the knowledge of the geometry of the part, and of the correspondence between points of the model and…
Mastering self-calibration of cameras with EikoTwin DIC
To provide accurate Digital Image Correlation (DIC) results, the EikoTwin DIC software must first calibrate the camera system. The use of the part under study as a reference allows a self-calibration of the cameras, specific to EikoTwin DIC. This is made using images of the structure in its reference state (unloaded). Using these images, the…
Design and validation of laser impact tests
ALPhANOV, an optics and lasers technology center based in Talence since 2007, and MBDA, the European leader in the Defence sector, have had a joint laboratory since 2019 for laser-matter interaction comprised of a cabin equipped with a high-power infra-red source. Thanks to a flexible and durable architecture, complex experiments, quickly reconfigurable, highly instrumented, and…
What is a good dic speckle pattern?
Concerned about making a new speckle pattern for your DIC experiment? In another article, we talked about the different techniques for creating a speckle pattern in digital image correlation, including the ability to vary the size and nature of the spots projected on the piece. But what size should your speckle pattern be? There is…
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
Why use Digital Image Correlation when testing lattice structures? This is what this article is about. 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…
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…
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