Energy absorption of aluminum alloy thin-walled tubes under axial impact

New experimental investigation of non-conventional dynamic biaxial plastic buckling of square aluminum tubular structures

“…The first reported study regarding the plastic buckling of thin-walled tube has been pioneered by Mallock in 1908 [16]. Plastic buckling is the most extensive and efficient means for absorbing energy due to the average collapse load stability, the available stroke per unit mass, and the high percentage of tube material contribution in plastic deformation, i.e., the combination of bending and stretching strains (e.g., [4,5,[17][18][19][20][21]). Therefore, its specific energy absorbed capacity is approximately 10 times greater than that in laterally compressed tubes [3].…”

Finite element modeling of non-conventional energy dissipating systems using metallic like-composite tubular structures

“…The plastic buckling of circular thin-walled tubes earliest revealed by Mallock in 1908 [4] was of particular interest in this study. Such an element is considered as the most efficient system attributable to its mean collapse load stability, the effective stroke, and the contribution of tube material in bending and stretching strains [e.g., [5][6][7][8][9][10]. Therefore, many investigations have been conducted using the plastic buckling of thin-walled tubes.…”

Effect of Zn and Mg Content on Crashworthiness of Al-Zn-Mg Alloy Thin-Walled Square Extrusions

“…They showed that the total energy absorbed by the aluminum alloy square tubes could be increased to be within a range of 26.6-74.6% by introducing optimization through-hole discontinuities. Sun et al [5] found that the increasing number of corners on the cross-section of multicorner tubes improved the energy absorption performance of 6060 aluminum alloy thin-walled square tubes. They obtained a maximum crushing force efficiency of 11.6%, which was higher than that of the square tubes made with the same material.…”