An Experimental on Honeycomb Core in the Axial Direction under the Quasi-Static Loading

Abstract

This paper focuses on the quasi-static response of the aluminum honeycomb core based on an experimental work. The load-compression and energy absorb characteristics of the out-of-plane aluminium honeycomb core are studied for three varieties of the core cell sizes which are 0.01905, 0.0127 and 0.00635 m. The crushing tests were conducted on the Instron machine with a displacement control of 5 mm/min. The initial part in the load-displacement graph shows linear elastic characteristic, followed by a non-linear elastic-plastic regime before it collapses. Based on the observation, the cell sized 0.01905 m shows the global buckling collapse, but the cell sized 0.0127 and 0.00635 m collapse as progressive buckling mode. The cell size 0.00635 m shows highest energy absorption due to it has the highest density and it collapses like the progressive buckling mode compared with the others specimen.

Experimental and Simulation Study of Honeycomb Core under Dynamic Loading

“…Pokaad et al had studied the effect of cell size dimension of aluminum honeycomb core under quasi static loading through experimental work. They found the energy absorb of the structure will be increased if the honeycomb cell size dimension is smaller (bin Pokaad et al, 2015). This is because the small cell size dimension will make the structure become more strength and rigid compared to the big cell size.…”