KAJI EKSPERIMENTAL PENYERAPAN ENERGI TABUNG ALUMINIUM YANG MENGALAMI BEBAN TEKAN ARAH AKSIAL
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.
References
J.M. Alexander, An approximate analysis of collapse
of thin-walled cylindrical shells under axial
loadings, Quarterly Journal of Mechanics and
Applied Mathematics, vol. 13, pp. 10-15, 1960.
W. Abramowicz dan N. Jones, Dynamic axial
crushing of circular tubes, International Journal of
Impact Engineering, vol. 2, pp. 263-281, 1984.
W. Abramowicz dan N. Jones, Dynamic progressive
buckling of circular and square tubes, International
Journal of Impact Engineering, vol. 4, pp. 243-269,
N. Jones., Structural Impact, Cambridge University
Press, London, 1989.
R.H. Grzebieta, An alternative method for
determining behavior of round stocky tubes
subjected to axial crush loads, Thin Walled
Structures, vol. 9, pp. 66-89, 1990.
T. Wierzbicki, S.U. Bhat, W. Abramowicz, dan D.
Brodkin, Alexander revisited - a two folding
element model of progressive crushing of tubes,
International Journal of Solid Structures, vol. 29,
pp. 3269-3288, 1992.
A.A. Singace, H. Elsobky dan T. Y. Reddy, On the
eccentricity factor in the progressive crushing of
tubes, International Journal of Solids and
Structures, vol. 32, pp. 3589-3602, 1995.
A.A. Singace dan H. Elsobky, Further
experimental investigations on the eccentricity
factor in the progressive crushing of tubes,
International Journal of Solids and Structures,
vol. 33, pp. 3517-3538, 1996.
X. Huang dan G. Lu, Axisymmetric progressive
crushing of circular tubes, International Journal
of Crashworthiness, vol. 8, no.1, pp. 87-95,
T. Borvik, O.S. Hoperstad, A. Reyes, M.
Langseth, G. Solomos dan T. Dyngeland, Empty
and foam-filled aluminum tubes subjected to
axial and oblique quasi-static loading,
International Journal of Crashworthiness, vol. 8,
no.5, pp. 481-494, 2003.
S.S. Hsu dan N. Jones, Quasi-static and dynamic
axial crushing of thin-walled circular stainless
steel, mild steel and aluminum alloy tubes,
International Journal of Crashworthiness, vol. 9,
no.2, pp. 195-217, 2004.