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Quasi-static and fatigue properties of a balsa cored sandwich structure with thermoplastic skins reinforced by flax fibres
Résumé : This paper presents the results of several experimental analyses performed on a biobased sandwich structure. The material studied is made up of thermoplastic skins reinforced by flax fibres and applied to a balsa core. It is produced by a single-step
liquid resin infusion process. First, the skin–core interfacial properties were measured and compared with those of the existing materials. Then, several quasi-static and dynamic analyses were performed to study the flexural behaviour of sandwich beams. The elastic and ultimate properties of the skins and core were deduced from these flexural tests. In addition, a failure mode map was developed based on the existing theories to explain the failure modes observed under different boundary conditions.
The influence of the statistical spread of the core’s mechanical properties on the failure of sandwich beams was considered. Moreover, fatigue analyses were conducted to determine the fatigue resistance of this bio-based structure. Its behaviour
was compared with that of the previously tested non-bio-based sandwich beams.
Littérature citée [45 références]
https://hal.archives-ouvertes.fr/hal-02406518
Contributeur : Compte de Service Administrateur Ensam <>
Soumis le : jeudi 12 décembre 2019 - 10:37:32
Dernière modification le : mardi 9 février 2021 - 11:40:27
Archivage à long terme le : : vendredi 13 mars 2020 - 15:21:08
Contributeur : Compte de Service Administrateur Ensam <>
Soumis le : jeudi 12 décembre 2019 - 10:37:32
Dernière modification le : mardi 9 février 2021 - 11:40:27
Archivage à long terme le : : vendredi 13 mars 2020 - 15:21:08
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LAMPA_JSSN_2018_GUILLAUMAT.pdf
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