Open AccessEffect of unit cell shape and strut size on flexural properties of ordered Copper foam
Author(s) -
Pulak M. Pandey,
Gurminder Singh
Publication year - 2019
Publication title -
international journal of engineering sciences
Language(s) - English
Resource type - Journals
ISSN - 0976-6693
DOI - 10.36224/ijes.120301
Subject(s) - flexural strength , materials science , three point flexural test , flexural modulus , composite material , brittleness , bending , modulus
The effect of unit cell shape and strut size variation was studied on the flexural properties of the ordered copper foam in the present study. The developed rapid manufacturing method using 3D printing and ultrasonic vibrationassisted pressureless sintering was employed to fabricate samples. Two different shapes such as simple cubic (SC) and body-centred cubic (BCC) were used as the unit cells for the samples with three different strut sizes 1, 1.3 and 1.6 mm. Three-point bend test was performed to obtain the flexural properties such as flexural modulus and ultimate flexural strength. Different shapes of failure curves were noticed during the test, which was owing to the differentunit cell shapes. The fracture was obtained to be brittle in nature due to the micro-pores of the struts. The fractured surfaces of the two different unit cells were also studied. The samples with the simple cubic unit cell shapes possessed better flexural properties as compared to the body-centred cubic unit cell samples.