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Etude comparative et caractérisations mécaniques des structures sandwichs multicouches

Abstract : The development of modern technologies requires that one use materials presenting high mechanical properties specific to their employment,but whose densities are low. The composite materials are materials which fulfil the preceding requirements. Because of their interest, the composite materials were initially used in aerospace, automotive, and construction industries. In composites, a class of particular interest ragarding the possibilities of design and development concern the sandwich structures resulting from a general assembly of a skin material with high stiffness and core materials of low density. The final properties of the materials are directly derived to the industry, many developments and studies in recent years have been aimed at optimizing the ratio mechanical performance over density. This thesis was undertaken with the same objective, but by having a strategy of optimization being focused more particulary on core materials. Our process is to reconsider in its entirety core materials and to propose a new concept of core complex which rests on the material stacking of different nature according to a quite precise sequence. The experimental results are correlated with those obtained by a theoretical approach based on a finite element method
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Submitted on : Thursday, March 29, 2018 - 1:54:01 PM
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  • HAL Id : tel-01752670, version 1



Jamal Eddine Arbaoui. Etude comparative et caractérisations mécaniques des structures sandwichs multicouches. Autre. Université Paul Verlaine - Metz, 2009. Français. ⟨NNT : 2009METZ048S⟩. ⟨tel-01752670⟩



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