The multi-objective structural optimisation design to improve the crashworthiness of a multi-cell structure for high-speed train

This article addresses the energy absorption and crashworthiness optimisation of a multi-cell energy-absorbing structure which is composed of orthohexagonal tubes and connecting column under dynamic impact loading. In this work, a finite element model was established and effectively verified using experimental data. To explore the effects of each structural part length parameters on crashworthiness characteristics such as the specific energy...