Multi-objective crashworthiness optimisation of tapered star-shaped tubes under oblique impact

Thin-walled structures play an important role as an energy absorber in all kinds of crash accidents due to their excellent energy absorption characteristics and lightweight. This paper aims to investigate the crashworthiness of thin-walled tapered tubes with star-shaped cross section under oblique impact. Firstly, the finite element model is validated through compressive tests. Then, the tapered star-shaped tube is impacted under five different...