Technical functionality: selection of the measurement mesh
By Clara Minguet and Lucas Angénieux, Research engineers at EikoSim 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…
Simulation validation with EikoTwin DIC
By Florent Mathieu, Ceo of EikoSim Simulation validation with EikoTwin DIC rely 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 method of “Model-Based testing”, EikoTwin DIC allows to measure displacements and strains of the observed parts directly on the simulation…
Hybrid calibration : a robust alternative to self-calibration
By Pierre Baudoin, R&D engineer at EikoSim 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…
Mastering self-calibration of cameras with EikoTwin DIC
By Lucas Angénieux, Research engineer and Pierre Baudoin, R&D engineer at EikoSim 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…
Design and validation of laser impact tests
By Clara Minguet, Research engineer at EikoSim ALPhANOV, optics and lasers technology centre based in Talence since 2007, and MBDA, 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,…
What is a good dic speckle pattern?
By Clara Minguet, Research engineer at EikoSim Concerned about making a new speckle pattern for you 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…
Detection monitoring of cracks with Digital Image Correlation: a choice tool
By Floriane Soulas, R&D engineer at EikoSim 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…
Digital Image Correlation for lattice structures
By Florent Mathieu, Ceo of EikoSim Philippe Brammer R&D engineer at EikoSim Ludovic Barrière, Project Leader: LASER – IRT Saint-Exupéry 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…
Digital Image Correlation for production monitoring – a collaboration with Renault and CETIM
By Pierre Baudoin, R&D engineer ata EikoSim 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…
Validation of a mechanical test – a collaboration with MCE-5 DEVELOPMENT and MECATEST
By Philippe Brammer, R&D engineer at EikoSim 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…
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