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Évaluation de la biréfringence en ligne et modélisation du procédé de soufflage de gaine multicouche

Abstract : Our objective is to develop tools that will allow us to improve our knowledge of the multilayer film blowing process. In order to gain general knowledge of the process an experimental campaign was realized to identify the effect of the main processing conditions on the radius, birefringence and temperature profile of monolayer and multilayer bubbles. We were able to observe that the layer position had almost no effect on radius and stress profiles. A Newtonian thermo mechanical model that describes the multilayer film blowing process was developed. A sensibility analysis was undertaken. The calculation allowed us to identify the conditions which could lead to a faster blowing of multilayer bubble in comparison to the blowing of their one layer counterpart. Generally the calculated variables (radius, temperature and stress) are in good agreement with the experimental data obtained from both monolayer and multilayer film blowing.
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  • HAL Id : tel-00274690, version 1

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Eric Gamache. Évaluation de la biréfringence en ligne et modélisation du procédé de soufflage de gaine multicouche. Mécanique [physics.med-ph]. École Nationale Supérieure des Mines de Paris, 2004. Français. ⟨NNT : 2004ENMP1264⟩. ⟨tel-00274690⟩

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