Dynamic buckling of elastic–plastic square tubes under axial impact—I: stress wave propagation phenomenon

Numerical investigation of the response of sandwich-type panels using thin-walled tubes subject to blast loads

“…Theoretical analysis into the folding mechanisms associated with axial tube crushing is reported in Wierzbicki and Abramowicz [3] and in Abramowicz and Jones [4]. The dynamic plastic buckling of square tubes is analyzed from the viewpoint of stress-wave propagation by Karagiozova [5] and Karagiozova and Jones [6]. Experimental investigations of the dynamic crushing of square tubes is extensive, however a thorough experimental analysis can be found in Langseth and Hopperstad [7].…”

A numerical investigation of dynamic plastic buckling behaviour of thin-walled cylindrical structures with several geometries

“…The investigation of the dynamic plastic buckling behavior of structural elements such as thin-walled tubes under axial impact loading has become an important research area for last two decades [1]. During buckling the collapse mechanism of the structural element is strongly controlled by the events occurring at the initial stage of impact.…”

“…During buckling the collapse mechanism of the structural element is strongly controlled by the events occurring at the initial stage of impact. For this reason, in recent years, the several studies, which were conducted to determine the effect of wave propagation to the plastic bucking behavior, has more focused on onset of plastic buckling [1][2][3][4][5][6]. These studies revealed that two buckling mechanisms are active in the initial stages of impact loading.…”

Application of color structured light pattern to measurement of large out-of-plane deformation

“…The measurement of this kind of displacement field is significant to evaluation of the deformation modes and understanding of the deflection mechanisms of the structures. For instance, when a thin-wall tube is subjected to axially quasi-static or impact load, large out-ofplane displacement will appear in the normal direction to the tube surface, which offers various buckling modes of the tubes with progressive axial folding [1,2]. In recent years, these structures have attracted increasingly more attention in the design of transportation systems due to their effective capability to absorb kinetic energy during the performance of plastic buckling, to meet increasing demands for using lighter and low-cost aluminum alloy structures in the systems for energy saving and crushing protection [3][4][5].…”