Energy Absorption of Thin Walled Structure

Year: 2011
Editor: Chakrabarti, A.
Author: Ghogare,Rohan; Prakash V.Raghu
Section: Design for X
Page(s): 211-219


Experimental and numerical studies of ribs reinforced extruded aluminum column subjected to axial crush were carried out and results were compared with that of empty column. The Outcomes of numerical study were found to be in good agreement with the experimental results with the variations of 5–8%. Analysis has been carried out to study the effect of crushing rates and material nonlinearities on the crush characteristics. Results show that distance between the ribs plays a vital role in modifying the energy absorption capacity of structure by 50% with reduction in initial peak force by almost 5–7% as compared to empty extruded aluminum column for a given crushing distance.

Keywords: Crush test, Initial peak force, Energy absorption, Extruded aluminum column, Rib reinforcement.


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