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Process simulation for a large composite aeronautic beam by resin transfer molding

Identifieur interne : 000043 ( Main/Exploration ); précédent : 000042; suivant : 000044

Process simulation for a large composite aeronautic beam by resin transfer molding

Auteurs : S. Laurenzi [Italie] ; A. Grilli [Italie] ; M. Pinna [Italie] ; F. De Nicola [Italie] ; G. Cattaneo [Italie] ; M. Marchetti [Italie]

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Mots-clés :

Abstract

This paper presents the numerical process analysis and the experimental investigation for the manufacturing of a reinforced carbon-fiber demonstrator of a large aeronautic beam by resin transfer molding (RTM). The component is a primary structure characterized by several thick sections with abrupt changes in shape that complicates the resin impregnation of the preform. Process simulations based on a finite element method-modified control volume (FEM-CV) were conducted to investigate the resin flow front patterns and find the injection scheme that guarantees both a good impregnation of the preform and a filling time compatible with the resin gel time. The beam component was successfully manufactured, and a good agreement between the numerical analysis and the fabrication process was demonstrated.


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<div type="abstract" xml:lang="en">This paper presents the numerical process analysis and the experimental investigation for the manufacturing of a reinforced carbon-fiber demonstrator of a large aeronautic beam by resin transfer molding (RTM). The component is a primary structure characterized by several thick sections with abrupt changes in shape that complicates the resin impregnation of the preform. Process simulations based on a finite element method-modified control volume (FEM-CV) were conducted to investigate the resin flow front patterns and find the injection scheme that guarantees both a good impregnation of the preform and a filling time compatible with the resin gel time. The beam component was successfully manufactured, and a good agreement between the numerical analysis and the fabrication process was demonstrated.</div>
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