Numerical Simulation Study on Lateral Collapse of Kenaf-Foam Composite Filled in Cylindrical Tube Subjected to Dynamic Loading

Ahmad Mujahid Ahmad Zaidi, Goh Ling Lang, Ahmad Firdaus Ahmad Zaidi


In this paper the energy absorption of kenaf foam filled cylindrical tube has been investigated. First, a finite element model for empty cylindrical tube was constructed and followed by a foam-filled cylindrical tube model. In this study, there were five samples of kenaf foam density that been used and they are 5%, 10%, 15%, 20% and 0% (100%PU) for three different thickness cylindrical tube. The implemented models were used to simulate the behavior of empty and foam-filled tubes under lateral dynamic loadings. An impact mass of 10kg with three different impact velocity, 10m/s, 15m/s and 20m/s were used in the empty tube model simulation. Meanwhile, for foam-filled tube, impact velocity had increased to10m/s, 20m/s and 30m/s. The energy absorption capability was increased with foam filler in the cylindrical tube and the best kenaf foam density was obtained at 15%. For 15% kenaf foam, the value of energy absorption was higher than 100% PU but the energy absorption decreases for 20%.The results showed that increases wall thickness and kenaf foam filler will increase the energy absorption.


Kenaf Foam; Energy Absorption

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