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The effect of oxygen pickup during selective laser melting on the microstructure and mechanical properties of Ti–6Al–4V ...

Published in Heliyon

Materials science; Mechanical properties; Cellular materials; Additive manufacturing; Titanium alloys

Designing novel cell-based structures for energy absorption

The design of cellular materials with controlled energy dissipation is relevant to a broad range of applications, ranging from cushioning (such as shoes and athletic protection) to vibration control in damped, lightweight structures. Additive manufacturing has dramatically expanded the design space for such structures, enabling a diverse range of t...

Etude du comportement mécanique multiaxial de matériaux cellulaires

Les travaux de cette thèse s’intéressent au comportement mécanique d’une mousse destinée à l’absorption d’énergie dans une assise de siège pilote. Les méthodes de caractérisation habituelles proposent de solliciter le matériau suivant une seule direction. Cependant, cette caractérisation ne permet pas d’être représentatif des sollicitations lors de...

An analytical expression for the Hugoniot stress–strain curve of elastic-plastic cellular materials

This note deals with the shock behaviour of foams and cellular solids. An analytical expression of the Hugoniot stress–strain curve has been developed using micromechanical and energetic arguments. In the case of elastic-plastic cellular materials, the application of the proposed formula is straightforward and the shock behaviour can be predicted f...

Multiaxial experiments with radial loading paths on a polymeric foam

Cellular materials such as polymeric foams in particular have been widely studied under uniaxial loading conditions. Many experimental studies have been focusing recently, however, on the responses of these foams to multiaxial loads. In the present study, a novel experimental hexapod device was used to perform combined uniaxial compression and simp...

Linking Adhesive Properties and Pore Organisation of Silicone Emulsions Obtained by Reactive Blending

Macro-cellular polymers are highly searched-for materials thanks to their rich physical properties. These arise from the internal structuration of the material, in which discrete cells of gas or liquid are tightly packed within a continuous polymeric solid. The size and organization of these cells have an important influence on the overall material...