Multiaxial behavior of foams – Experiments and modeling
Résumé
Cellular materials are strongly related to pressure level inside the material. It is therefore important to use experiments
which can highlight (i) the pressure-volume behavior, (ii) the shear-shape behavior for different pressure level. Authors propose
to use hydrostatic compressive, shear and combined pressure-shear tests to determine cellular materials behavior. Finite Element
Modeling must take into account these behavior specificities. Authors chose to use a behavior law with a Hyperelastic, a Viscous
and a Hysteretic contributions. Specific developments has been performed on the Hyperelastic one by separating the spherical
and the deviatoric part to take into account volume change and shape change characteristics of cellular materials.
Domaines
Physique [physics]
Origine : Fichiers produits par l'(les) auteur(s)
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