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Développement et caractérisation d'éco-structures composites à base de bois

Abstract : Low carbon emission is a shared goal of all transportation industry. One way to match this expectation consists in the introduction of lightweight materials with high specific properties such as composites materials. Wood based materials combined with fibre-reinforcedpolymerappear to be good candidates if we introduce environmental aspects, safety considerations,and energy absorption capabilities. Thus, several sandwich configurations with plywood cores has been characterized to impact tests in order to quantify the energy absorption capability of such materials. A comparison of these results is proposed with the sandwich materials currently used in the aeronautics industry to be able to identify the potentiality of these new wood-based structures. We analyzed their post impact strength through compression after impact test. Finally, several structures were identified as good compromise solutions between residual strength and stiffness to replace actual sandwich structures. Regarding to their impact behaviour, and based on numerical models developed, manufacturing and testing of a crash box using wood based sandwich structures should be carried out in the future.
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https://hal.archives-ouvertes.fr/hal-02421456
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Submitted on : Friday, December 20, 2019 - 2:47:40 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:57 PM
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  • HAL Id : hal-02421456, version 1

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Romain Guélou, Florent Eyma, Arthur Cantarel, Bruno Castanié, Christophe Bouvet, et al.. Développement et caractérisation d'éco-structures composites à base de bois. 21ème Journées Nationales sur les Composites, École Nationale Supérieure d'Arts et Métiers (ENSAM) - Bordeaux, Jul 2019, Bordeaux, Talence, France. ⟨hal-02421456⟩

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