The experimental and numerical quasi-static crushing behaviors of Nomex™ honeycomb-filled thin-walled Al
tubes were investigated. The honeycomb filler was modeled using a unit cell model. The numerical model and
experimental results have shown that, 6.4 mm and 4.8 mm cell size honeycomb filling had no effect on the deformation
mode (diamond); however 3.2 mm cell size honeycomb filling changed the deformation mode to mixed/concertina.
Honeycomb filling was also shown to increase the specific energy absorption of filled tubes over that of Al tube. The
specific energy absorption of honeycomb filling was further compared with those of tube wall thickening and Al closedcell