A Study on the Axial Compressive Response of Lattice-Cored Sandwich Tubes

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This paper deals with the axial crushing characteristics of sandwich cylinders with a BCClattice core based on the nonlinear finite element (FE) method. In particular, the effect ofcore and cylinder diameter on the crushing characteristics were investigated. By introducingthe lattice core sandwiched between two tubes, the deformation behaviour can be controlledaxisymmetrically, leading to an increase in the average load Pave, due to the local bendingresistance. In addition, a series of lattice sandwich tubes were fabricated using a metal 3Dprinter, and their axial compressive responses were compared with the FE analysis, where goodagreement was observed.

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