Multiaxial behavior of foams – Experiments and modeling
1 Ecoles de Saint-Cyr Coëtquidan, CREC, 56381 Guer, France
2 Université de Bretagne Sud, LIMATB, 56100 Lorient, France
3 Arts et Metiers ParisTech, Campus de Bordeaux-Talence, I2M, 33405, France
Published online: 7 September 2015
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.
© Owned by the authors, published by EDP Sciences, 2015
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