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Vers une stratégie d'identification en dynamique rapide pour des données incertaines

Abstract : The dynamic simulation of composite structures up to rupture is still a challenging task. In this context, the damage mesomodels have been developed in LMT-Cachan, both in static and dynamics by introducing delay effect laws, leading to an objective descrition of rupture.This work discusses the identification of these delay parameters, leading to the more general problem of the taking into account of corrupted experimental datas.This study focusses on the development of an inverse identification strategy from transient dynamic tests. The proposed method takes into account the uncertainty of the measurements from the very begining of the formulation. It is based on the error on constitutive relation principle and has first been developed for elastic behaviour. The method involves the resolution of non standard dynamic problems and dedicated methods have been studied. The study pointed out the key points of the robustness of the method, with respect to the uncertainties.
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https://tel.archives-ouvertes.fr/tel-00132833
Contributor : Ens Cachan Bibliothèque <>
Submitted on : Thursday, February 22, 2007 - 4:29:26 PM
Last modification on : Monday, February 15, 2021 - 10:48:42 AM
Long-term archiving on: : Wednesday, April 7, 2010 - 12:31:03 AM

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  • HAL Id : tel-00132833, version 1

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Pierre Feissel. Vers une stratégie d'identification en dynamique rapide pour des données incertaines. Mécanique [physics.med-ph]. École normale supérieure de Cachan - ENS Cachan, 2003. Français. ⟨tel-00132833⟩

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