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Hadi, Bambang K
Mesin
Mechanical Engineering

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KAJI NUMERIK DAN EKSPERIMENTAL PENYERAPAN ENERGI TABUNG ALUMINIUM BERGALUR DENGAN BEBAN AKSIAL Hadi, Bambang K; Putra, Ichsan S; Basuki, David; Tedy S, Yanyan
Mesin Vol 22, No 1 (2007)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.59 KB)

Abstract

Grooved tubes under axial compression are widely used as efficient energy absorption structures. The energy absorption uses plastic folding mechanisms that are formed during the loading. In this paper, the behaviors of grooved tubes under axial compression loading are discussed. The diameter of the tubes is 100 mm, with 2 mm thickness and the length is 72 mm. The number of grooves is 3 and 7, with the groove’s depth is 1 mm. The study uses analytical method, numerical method using explicit dynamic of ABAQUS as well as experimental methods. The results show that increasing the number of grooves will reduce the mean crushing load, Pm. The numerical analysis is able to predict precisely the final plastic folding form of the tubes compared to the experimental results. The difference of Pm among the three methods varies between 1 – 20%. Further investigation is needed to reduce the differences. In all the studies conducted here, the mean crushing loads of the experimental data are always greater than both numerical and analytical methods.
KAJI EKSPERIMENTAL PENYERAPAN ENERGI TABUNG ALUMINIUM YANG MENGALAMI BEBAN TEKAN ARAH AKSIAL Hadi, Bambang K; Putra, Ichsan S; Tedy S, Yanyan
Mesin Vol 21, No 2 (2006)
Publisher : Mesin

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Abstract

Energy absorbing structural components are widely used in vehicles, such as car, aircraft, train, ships and others. The aim is to absorb energy during impact and thus lessen the risk of occupant’s injuries and limit the damage to the whole structure. Cylindrical shell that deform plastically due to longitudinal loading is one of the efficient energy absorbing structures. In this paper, experiments were carried out on aluminum cylindrical shell which was loaded axially. The diameters of the cylindrical shell were 60 mm and 100 mm, and the thickness was 2 mm. Some collapse trigger mechanisms were investigated, which are: plastic fold trigger, circular hole trigger and oval hole trigger. The experiments will then be compared with analytical results.
Co-Authors Basuki, David Putra, Ichsan S Tedy S, Yanyan