Compression of crumpled aluminum thin foils and comparison with other cellular materials

Olivier Bouaziz (1, 2) , J.P. Masse (1) , S. Allain (1) , Laurent Orgéas (3) , Pierre Latil (3)

1 ArcelorMittal
2 MAT - Centre des Matériaux
3 3SR - Laboratoire sols, solides, structures - risques [Grenoble]

The elasto-plastic behavior of aluminum crumpled thin foils was characterized in close die and uniaxial compressions within a wide range of relative density with different initial sizes of sheet. The experiments highlight that crumpled materials can present a hybrid behavior between foams and entangled materials with an auxetic behavior up to a relative density of 15%.

Mots clés: Crumpled materials; Self-locked architecture; Cellular materials; Foam; Elasticity; Plasticity

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Olivier Bouaziz, J.P. Masse, S. Allain, Laurent Orgéas, Pierre Latil. Compression of crumpled aluminum thin foils and comparison with other cellular materials. Materials Science and Engineering: A, 2013, 570, pp.1-7. ⟨10.1016/j.msea.2013.01.031⟩. ⟨hal-00821940⟩