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 Simulation is crucial in the development, approval, and certification of industrial products and services. It is the foundation for strategic business decisions and projects, making experimental testing even more significant. Testing and output of measured results used to be a mere requirement for compliance demonstration, but now it serves as…
How to preview your test using Blender software?
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…
The digital twin definition: bringing the real world into your simulations
In today’s rapidly advancing technological landscape, the concept of the digital twin has emerged as a groundbreaking innovation with the potential to revolutionize various industries. By seamlessly integrating the virtual and physical worlds, digital twins enable businesses to gain valuable insights, optimize processes, and make informed decisions. In this article, we will explore the definition…
Digital Image Correlation, how to choose your acquisition hardware?
We have already seen together the principles of digital image correlation and the contributions of such measures. Today we will see how to choose its acquisition hardware so that it is adapted to the different use cases encountered. Image acquisition equipment means the cameras of course, but also the lenses, the lights, the mounting brackets…
Towards a better understanding of mechanicals tests thanks to DIC, with ALSTOM and CETIM
Consistency of simulation and test data The consistency of test data and numerical results is paramount while carrying out the simulation-experiment comparison required to validate numerical simulations. First of all, mechanical tests need to respect the specifications laid out during their design: sample geometry, load path, location and orientation of the loading point, measurement points…
Digital image correlation: The contribution of the global method
Why a “global” method? Digital image correlation consists in measuring a displacement field between a reference configuration and a deformed configuration. There are two large families of algorithms to make this measurement: In the general case, the displacement field u(x) can be decomposed as a sum of functions of form Nm : where vα,m are…
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