Posts

Cartographie Résidus

Detection monitoring of cracks with Digital Image Correlation: a choice tool

By Team Eikosim | 19 December 2019

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…

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Digital Image Correlation for lattice structures

By Team Eikosim | 2 December 2019

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…

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Digital Image Correlation for production monitoring – a collaboration with Renault and CETIM

By Team Eikosim | 4 November 2019

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…

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Validation of a mechanical test – a collaboration with MCE-5 DEVELOPMENT and MECATEST

By Team Eikosim | 15 July 2019

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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Verification of the robustness of an Image Correlation software – a collaboration with SAMWELL Testing Inc.

By Team Eikosim | 11 July 2019

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…

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Previsualization with Blender of a complex structural test

By Team Eikosim | 28 May 2019

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…

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Toward quantitative image analysis of Bird strike tests

By Team Eikosim | 30 April 2019

By Florent Mathieu, Ceo of EikoSim 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…

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Understanding and controlling the sources of discrepancy between tests and simulations

By Team Eikosim | 1 March 2019

By Renaud Gras, Co founder – CTO of EikoSim 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…

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How to preview your test using Blender software?

By Team Eikosim | 16 November 2018

By Pierre Baudoin, R&D engineer of EikoSim Blender as a supporting tool for 3D DIC tests Have you ever heard of Blender to preview a mechanical test? Blender is a comprehensive, open-source, cross-platform 3D creation suite that can be used to create photo-realistic renders, animations, or even full-length movies. Blender’s render engine can produce physically…

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Digital Image Correlation – The basics

By Team Eikosim | 17 October 2018

By Florent Mathieu, CEO of EikoSim Digital Image Correlation (DIC) is a measurement technique that processes pictures taken from cameras to track and record the surface motion of a deforming solid. In the mechanical engineering field, it has been widely used to monitor and process test data in both research and industrial contexts, for applications…