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Multi-scale investigation of fire behaviour of a seat and a wall panel from European railway transport system

Abstract : This thesis work comes within the framework of a collaborative European research program (Transfeu), dedicated to estimate the fire effects on people into a train coach, based on fire safety methodology. The objective is to model the fire behaviour of a multilayer seat materials and a composite wall panel in a coach independently of the fire source in order to estimate the safety level of a coach design scenario. The principle is based on a multi-scale approach of the reaction-to-fire of two products from the raw matter to the real scale. At each scale, experimental and numerical data are compared and then validated on the thermal decomposition and the combustion processes. The used input data are the same for all scales and estimated according to standard experimental tests or literature reviews. The thermal decomposition and the combustion phenomena are simulated from a pyrolysis and a mixture fraction combustion models. This comparison at increasing complexity allows observing the ability of the models to reproduce realistic simulations. The results allow to highlight the limits of the models and then to propose better solutions in order to overcome them.
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Submitted on : Tuesday, January 7, 2014 - 8:08:09 AM
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  • HAL Id : tel-00924616, version 1

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Anycée Camillo. Multi-scale investigation of fire behaviour of a seat and a wall panel from European railway transport system. Other. ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechique - Poitiers, 2013. English. ⟨NNT : 2013ESMA0014⟩. ⟨tel-00924616⟩

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