Energy absorption behaviors of foam-filled holed tube subjected to axial crushing: Experimental and theoretical investigations
Ruyang Yao, Bei Zhang, Guansheng Yin, Zhenyu Zhao
Abstract
In the present research, the axial crushing behaviors of foam-filled holed tube are investigated by performing quasi-static compression tests. The possible deformation modes are obtained. The experimental results show that the energy absorption performance of empty holed tube can be greatly enhanced by filling aluminum foam. Furthermore, a novel theoretical model for concertina mode of foam-filled holed tube is proposed based on super folding element method, and validated by present and previous experimental results. The interaction between the tube wall and foam filler, normalized mean crushing force and specific energy absorption are obtained theoretically and discussed in detail.
Topics & Concepts
Materials scienceTube (container)Metal foamComposite materialDeformation (meteorology)Compression (physics)Absorption (acoustics)AluminiumStructural engineeringEngineeringCellular and Composite StructuresAutomotive and Human Injury BiomechanicsPickering emulsions and particle stabilization