Combaz, E.Bacciarini, C.Charvet, R.Dufour, W.Mortensen, A.2011-10-112011-10-112011-10-11201110.1016/j.jmps.2011.05.015https://infoscience.epfl.ch/handle/20.500.14299/71516WOS:000295064300007Multiaxial experiments are performed on replicated aluminium foam using a custom-built apparatus. The foam structure is isotropic, and features open monomodal pores 75 mu m in average diameter. Plane stress (sigma(1), sigma(2), sigma(3) = 0) and axisymmetric (sigma(1), sigma(2) = sigma(3)) yield envelopes are measured using cubical specimens, supplemented by tests on hollow cylindrical and uniaxial samples. In addition to the three stress components at 0.2% offset strain, the computer-controlled testing apparatus also measures the three instantaneous displacement vectors.Foam materialPorous materialMechanical testingElastic-plastic materialYield surfaceViscoplastic Porous-MediaAluminum FoamsMechanical-PropertiesMetallic FoamsTriaxial CompressionConstitutive ModelsCellular MaterialsFailure SurfacesPlasticityFracturetext::journal::journal article::research article