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Flexural Experimental Analysis Coupled To An Acoustic Emission Study Of A Curved Sandwich Structures Made By Filament Winding Process

Conférence invitée
Auteur
HADDAD, Mohamed
ccGUILLAUMAT, Laurent
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]

URI
http://hdl.handle.net/10985/11187
Date
2016

Résumé

Composite sandwich structures studied in this paper were developed for a cylindrical tanks of vacuum vehicles using glass-fiber/vinylester composite facing and different types of foam cores like PET, PU and 3D woven Fabrics. The main objective of a designer is to choose the appropriate materials constituting the structure and determine the respective thicknesses of skins and foam in order to resist to bending moment, shear and axial stresses induced by forces applied to the material components. Generally, their study is based on the sandwich theory and the selection of materials having the appropriate properties, depending on its application. The work presented in this paper aims to characterize some of these lightweight structures in three and four points bending, followed simultaneously by acoustic emission control study to provide additional expertise elements. Finally, a failure analysis of sandwich structures is made to identify the different cracking modes of the different candidate materials.

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LAMPA_ECCM17_2016_HADDAD.pdf
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Documents liés

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  • Analytical and numerical study based on experimental investigation of different curved sandwich composites manufactured by filament winding process 
    Article dans une revue avec comité de lecture
    HADDAD, Mohamed; CROZATIER, Mathilde; ccGUILLAUMAT, Laurent; ccTEREKHINA, Svetlana (SAGE Publications, 2018)
    Sandwich structures, due to their high stiffness versus lightness ratio, are used progressively in high performance products. In order to design these structures with the most appropriate dimensions and material combinations, ...
  • Comparison of Holmium:YAG and Thulium Fiber Lasers on the Risk of Laser Fiber Fracture 
    Article dans une revue avec comité de lecture
    UZAN, Audrey; CHIRON, Paul; PANTHIER, Frédéric; HADDAD, Mattieu; BERTHE, Laurent; DOIZI, Steeve; ccTRAXER, Olivier (2021)
    Objectives: To compare the risk of laser fiber fracture between Ho:YAG laser and Thulium Fiber Laser (TFL) with different laser fiber diameters, laser settings, and fiber bending radii. METHODS: Lengths of 200, 272, and ...
  • Impact of laser fiber tip cleavage on power output for ureteroscopy and stone treatment 
    Article dans une revue avec comité de lecture
    HADDAD, Mattieu; EMILIANI, Esteban; ROUCHAUSSE, Yann; COSTE, Frédéric; BERTHE, Laurent; DOIZI, Steeve; BUTTICÈ, Salvatore; SOMANI, Bhaskar Kumar; TRAXER, Olivier P. (Springer Verlag, 2017)
    Purpose: Holmium:YAG laser is the most used laser for urolithiasis. Generally, we use metallic scissors to cut the fiber tip to restore its effectiveness. Many cleaving methods have been described to avoid fiber damage and ...
  • Scale effects on the response of composite structures under impact loading 
    Article dans une revue avec comité de lecture
    BALLERE, Ludovic; LATAILLADE, Jean-Luc; ccGUILLAUMAT, Laurent; ccVIOT, Philippe (Elsevier, 2008)
    For several years, composite materials have taken a significant part in the realization of structures designed for transport (aeronautical, nautical, automotive. . .). In order to qualify the behavior of such structures, ...
  • Quasi-static behaviour and damage assessment of flax/epoxy composites 
    Article dans une revue avec comité de lecture
    LIANG, Shaoxiong; GNING, Papa-Birame; ccGUILLAUMAT, Laurent (Elsevier, 2015)
    Experimental investigations were conducted on flax and E-glass fibres reinforced epoxy matrix composites subjected to quasi-static loadings. Flax/epoxy samples having [0]12, [90]12, [0/90]3S and [±45]3S stacking sequences, ...

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