The Influence of Cell Shape Anisotropy on the Tensile Behavior of Open Cell Aluminum Foam

The effect of cell shape anisotropy on the tensile behavior of open cell aluminum foam was investigated. The relative density of each sample was calculated by measuring the mass and dividing it by the volume and the mass of pure Al. the samples were received in the annealed (AN) condition. Some of the samples were subjected to an additional precipitation hardening heat treatment (HT) to increase the yield stress. The samples were machined with electro-discharging into a do bone shape. The area of the reduced section was 25 × 25 mm2 and the length was 60 mm. The dog bone shaped foam samples were glued onto aluminum T-bars using an epoxy glue produced by Vantico. The tensile tests were performed using an MTS 810 servohydraulic testing machine with a 10 kN load cell and were executed under displacement control at a rate of 0.7 mm/min. It was observed that the q-value is independent of the heat treatment and therefore the difference between the AN and HT samples has not been indicated.