Axial plastic collapse of thin bi-material tubes as energy dissipating systems

Plastic mechanism analysis of steel SHS strengthened with CFRP under large axial deformation

“…Mamalis et al [18] studied non-metallic plastic square tubes under axial load. The effect of CFRP on the collapse of composite circular tubes was studied by Mamalis et al [19,20], Gupta and Abbas [21], Hanefi and Wierzbicki [22] and more recently by Wang and Lu [23]. However, in most of these crush studies, formulations for the mean crush load were derived with little focus on the development of the collapse curves, such as those by Key and Hancock [24], Zhao et al [25] and more recently by Elchalakani et al [26,27] for bending of CHS.…”

Analytical and experimental investigations into the controlled energy absorption characteristics of thick-walled tubes with circumferential grooves

“…Axial plastic collapse of thin bi-material tubes was analyzed by Mamalis et al. [12]. Some tests were done using foams as they are light and help the stability of the tubes and improve their energy absorption.…”

Mathematical Model for Thin-walled Corrugated Tube under Axial Compression

“…Many researchers try to study structures crashworthiness. These studies are about different geometry of energy absorbing components, their materials and different loading conditions [1]. The loading condition can be quasi-static or dynamic loading.…”

“…Many experimental, numerical, and theoretical studies related to this topic have appeared in the literature (e.g. [1][2][3][4][5]). In order to improve the energy absorption characteristics of such thin-walled tubes, many tests have been conducted on cross-section shapes of tubes [5,8].…”