@article{ref1,
title="The Concept of Double-Walled Sandwich Columns for Energy Absorption",
journal="International journal of crashworthiness",
year="1999",
author="Santosa, S and Wierzbicki, T",
volume="4",
number="2",
pages="175-198",
abstract="A new concept of a double-walled sandwich column undergoing axial crushing is studied. The column is composed of a lightweight core material, such as aluminum honeycomb or foam, sandwiched between outer and inner shells. Numerical analysis using non-linear dynamic finite element code is carried out for various core heights and crushing strengths. It is found that during progressive crushing, the core-face plate debonding is localized only at the comer portion of the column, and high crushing resistance is still obtained. For the same total column weight, the double-walled sandwich column gives a much higher crushing resistance compared to the single wall column. A 40 - 60 % weight saving can be achieved by using aluminum honeycomb core, while 30 - 45 % weight saving can be achieved by using aluminum foam core. It is proved that the double-walled sandwich column is an attractive structural element for weight efficient crashworthy design.   <p>Language: en</p>",
language="en",
issn="1358-8265",
doi="",
url="http://dx.doi.org/"
}