An Optimal Design of the Two-Staged Square Sectional Combined Energy Absorption Structure with Local Surface Nanocrystallization

In this paper, a local surface nanocrystallization technology is used for thin-walled structures with square cross sections, and an energy absorption device of two-staged combined energy absorption structure is proposed. In virtue of the surface nanocrystallization that enables to change the material on local positions, the structural deformation is induced and controlled to maximize the energy absorption capacity. A numerical model of the...