Tensile Behavior of Foamed Aluminum with Closed-Cell
Foamed aluminum has been applied in many fields due mainly to its excellent properties. The tensile deformation process and characteristics of foamed aluminum with closed-cell were studied in this paper and the deformation mechanisms were discussed. The results show that foamed aluminum fractured without necking. The tensile stress-strain curves have similar characteristics, the linear elasticity at a low stresses followed by plastic yielding, strain hardening and rupture, which has obvious difference with compression stress-strain curve. The fracture mechanism is neither brittle fracture nor plastic fracture. The defects existed in foamed aluminum interior have important influence on tensile property.
F. Wang et al., "Tensile Behavior of Foamed Aluminum with Closed-Cell", Key Engineering Materials, Vols. 480-481, pp. 117-119, 2011