Comparison between finite element calculations and holographic interferometry measurements, of the thermo-mechanical behaviour of satellite structures in composite materials

C. Thizy; P. Lemaire; M. Georges; P. Rochus; J.P. Colette; R. John; K. Seifart; H. Bergander; G. Coe

doi:10.1364/PEMD.2005.700

Photorefractive Effects, Materials, and Devices
OSA Trends in Optics and Photonics (Optica Publishing Group, 2005),
paper 700
•https://doi.org/10.1364/PEMD.2005.700

Comparison between finite element calculations and holographic interferometry measurements, of the thermo-mechanical behaviour of satellite structures in composite materials

C. Thizy, P. Lemaire, M. Georges, P. Rochus, J.P. Colette, R. John, K. Seifart, H. Bergander, and G. Coe

Photorefractive Effects, Materials, and Devices 2005

Sanya, Hainan China
ISBN: 1-55752-793-8

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Applications: Adaptive Interferometry (AAI)

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C. Thizy, P. Lemaire, M. Georges, P. Rochus, J. P. Colette, R. John, K. Seifart, H. Bergander, and G. Coe, "Comparison between finite element calculations and holographic interferometry measurements, of the thermo-mechanical behaviour of satellite structures in composite materials," in Photorefractive Effects, Materials, and Devices, G. Zhang, D. Kip, D. Nolte, and J. Xu, eds., Vol. 99 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2005), paper 700.

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Abstract

The stability requirements for the satellite structures evolve increasingly. To predict this one during the design phase a more and more used tool is the finite element calculation of thermo-elastic models. The verification by measurement of these predictions on operational systems or testing rods is a key element allowing to validate these calculations and also to improve the simulations in order to study more complex cases in a reliable manner. We present the results of such a comparative study carried out on prototype structures using dynamic holographic interferometry, based on a sillenite photorefractive crystal, to measure the thermo-mechanical behavior.

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