Posts by Team Eikosim
Measurement errors and digital image correlation
By Pierre Baudoin, R&D engineer at EikoSim When conducting a test campaign instrumented by digital image correlation, it must be possible to determine the characteristic measurement error for the quantities of interest studied (measured displacement or strain). This analysis is essential to know whether the measurement made is indeed the desired “signal” and not the…
Read MoreWhat are good Digital Image Correlation test practices?
Importance of a good implementation of digital image correlation tests When performing a test by using Digital Image Correlation (DIC), many parameters must be taken into account: brightness, speckle pattern, camera placement. All these steps are essential to achieve the best possible images, in order to get the maximum information from them. Indeed, neglecting one…
Read MoreEikoSim Joins the Altair Partner Alliance to Increase Its Footprint Among Simulation Customers
By Florent Mathieu, Ceo of EikoSim EikoSim today announced that it has become a member of the Altair Partner Alliance (APA), to provide its image analysis and simulation validation tools to Altair simulation software customers. This partnership came together after EikoSim’s efforts to develop compatibility between its EikoTwin software and Altair’s simulation suite, giving Altair customers…
Read MoreEikoTwin Virtual: a support tool for the preparation of your virtual tests with Blender
The first stable version of the blenDIC add-on has been released. It is a photo-realistic image generation tool for setting up and performing virtual tests involving digital image correlation using the open source 3D animation software Blender. BlenDIC is an open source (GPL) add-on to Blender that encapsulates a large number of tools allowing Blender…
Read MoreHybrid 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…
Read MoreSpeckle pattern size: how to calculate it for your DIC test?
In a previous article, we discussed how to choose the size of the speckle pattern for your experiment. We introduced the necessary parameters to control in order to optimize the size of your speckle for each of your tests. As mentioned, although the quality of a speckle pattern can only be analysed with respect to…
Read MoreDesign 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…
Read MoreHigh-temperature tests for ceramic matrix composites
As a new member of EikoSim team, I was offered the opportunity to present an overlook of my thesis work dealing with high-temperature experiments for SiC/SiC composites, which was carried out in LMT under the supervision of F. Hild and in collaboration with Safran Ceramics under the supervision of V. Herb and B. Lacombe. Credits…
Read MoreWhat 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…
Read MoreDetection 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…
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