COURBE DE WOHLER PDF

Sandwich panels have a very high stiffness to weight ratio, which makes them particularly useful in the aerospace, marine and in almost in all the industrial applications. However, traditional sandwich structures present problems like their tendency towards delamination, interfacial debonding and other complicated modes of failures. The aim of the present study is to investigate the mechanical behaviour of sandwich composite materials under dynamic loading. They consist of epoxy resin and glass fibres for the skins and PVC foam of various densities for the core. These tests were carried out under displacement control at various displacement levels. Stiffness degradation is used to study the mechanical behaviour of sandwich composites in fatigue.

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Sandwich panels have a very high stiffness to weight ratio, which makes them particularly useful in the aerospace, marine and in almost in all the industrial applications. However, traditional sandwich structures present problems like their tendency towards delamination, interfacial debonding and other complicated modes of failures.

The aim of the present study is to investigate the mechanical behaviour of sandwich composite materials under dynamic loading. They consist of epoxy resin and glass fibres for the skins and PVC foam of various densities for the core.

These tests were carried out under displacement control at various displacement levels. Stiffness degradation is used to study the mechanical behaviour of sandwich composites in fatigue.

The fracture topographies are observed by optical and scanning electronic microscopes. Results shows that the mode of damage and failure strongly depends upon the core densities. Finally fatigue life is characterised by Wohler curves using N 10 criterion for different types of sandwich composites. Data correspond to usage on the plateform after The current usage metrics is available hours after online publication and is updated daily on week days.

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August Wöhler

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. Nous proposons la mise en place d'une methode de mesure permettant de retrouver la resistance en fatigue et en fatigue-corrosion des materiaux. Dans cette etude, il nous a ete confie 3 differents materiaux que nous allons caracteriser afin d'obtenir un classement de leur resistance les uns part rapport aux autres. Save to Library.

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