Le travail présenté dans ce document s'inscrit dans le cadre d'un projet de recherche français de 3 ans dédiéà l'utilisation de matériaux composites dans la construction navale. Dans ce projet, il est prévu d'utiliser le code CFD FDS-5 avec un modèle de pyrolyse pour tenir compte de la contribution de cloisons en matériau composite sur le développement du feu, dans le cadre de la simulation de scénarios incendies a bord d'un navire. Pour garantir la qualité de ces simulations, une méthode de validation progressive des modèles utilisés aété suivie. Cette méthode est basée sur une approche combinée expérience-simulatioǹ aéchelle croissante. Pour illustrer la démarche, on présente ici les résultats d'uneétude expérimentale du comportement au feu d'unéchantillon de matériau composite, sur un banc d'essaisà petiteéchelle, puis la simulation des essais correspondants.
The NANOFEU project supported by the French Research Agency (ANR) aims to characterise the fire behaviour of nanoparticles filled polymer materials. Day after day, new applications of nanoparticles appear in industry. Among multiple applications in various domains, the role played by nanostructures particularly in combustion and flame retardancy phenomena needs to be quantified by modelling, experimental and numerical validations, since the use of these new components is increasing to upgrade polymer performances. Their employment could represent nowadays a valuable alternative or could be used in synergy with the conventional flame retardants systems. Nanocomposites based on several categories of polymers will be designed, incorporating suitable nanoparticles. Multiscale modelling of material, investigation of thermal degradation processes, and influence of interfacial modifications of nanoparticles, characterisation of effluents, particles released (size and morphology) and smoke toxicity will be made, developing original experimental and numerical means. We will particularly focus on fire performance, smoke toxicity and morphological modification of particles in the effluents, to weight the various impacts of the introduction of these nanofillers. A traceability of nanoparticles affected by combustion will be done through the analysis of effluents. In a first part, this paper includes a detailed presentation of the project by clarifying the partners' roles and objectives expected at the end of the project. In a second part, the foreseen experimental and numerical tools will be developed in order to improve the knowledge of mechanisms involved in combustion.
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