a b s t r a c tTo obtain the T832 material behaviour, 6063-T4 tubes need to be cold drawn before artificial aging to enhance their mechanical properties. Since a high area reduction is required, multiple drawing passes are generally necessary to avoid fracture of tubes during the drawing process. These several steps need a time consuming process which could be reduced by optimization. The optimization of the tools geometry has been done through a finite element model with the objective of reducing the maximum stress level to draw tubes in one pass. Based on the optimum design, a new tool was built and acceptable accordance was observed between experiments and numerical results.Crown
L'analyse des outils de réforme et de gestion de la politique étrangère de la France nécessite un questionnement préalable autour de deux questions. La première tient à la spécificité de la politique étrangère au regard d'autres politiques publiques : gère-t-on la politique étrangère en France et peut-on la ré-former ? La seconde est plus fonctionnelle : quels sont ces outils, s'ils existent, et quel est le statut des livres blancs, en France, en tant qu'outils d'administration publique ?
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