5TH International Congress on Technology - Engineering & Science - Kuala Lumpur - Malaysia (2018-02-01)

Energy Absorption Capability And Failure Modes Reinforced Composite Hexagonal Tubes

Abstract In this article, composite hexagonal tubes are formed by hand lay-up technique. The influence of the crashworthiness parameters and failure modes on hexagonal composite tubes are investigated. The hexagonal angles used were at 35°, 45°and 55° with a tube length of 100 mm for all specimens. Samples were then tested using the quasi-static axial test with fixed speed 15mm/second. Compression test was done by measuring the ability of tubes to remain intact during the accident. The tubes showed similar behavior in the pre-crushing stage, for the average load, the highest one was achieved by (H.100.55°) Pm=5 kN. All the tubes were failed by a progressive failure mode from the top end of the tube as indicated, furthermore, a transverse crack and local buckling were observed. On another hand, the specific energy absorption increases as the hexagonal angle increase from 35°to 55°.
M.F.M. Alkbir, A. Endut, S. B. Mohamed, S. M. Sapuan