Energy absorption characteristics of bio-inspired hierarchical multi-cell square tubes under axial crushing

In this study, the dynamic crushing behaviour and energy absorption characteristics of a novel bio-inspired hierarchical multi-cell square (BHMS) tubes were numerically and theoretically investigated. The proposed structures were constructed mimicking the gradient distribution of cell sizes in the biological structures such as bone and bamboo. A series of compression tests were numerically carried out for the BHMS structures with different...