Mixed-mode bending of a smart reconfigurable lattice structure with bi-directional corrugated core

摘要: Abstract High load-bearing, high storage ratio, and lightweight structures hold great trends in the field of large-scale deployable space structures. In this paper, we present a smart reconfigurable lattice (SRL) structure with bi-directional corrugated core to meet integrated versatile designs. The three-point bending experimental results indicate that load-bearing efficiency 3D SRL is 5 times more than 2D folded structure. performed mixed-mode behaviors, including struts buckling, debonding, global bending. Analytical models are also established predict failure load structure, agreeing well tested results. feasibility design verified by folding/unfolding simulations experiments. Moreover, effects geometrical parameters on modes discussed. A competitive mode between shear-induced compression-induced found. included angle plays key role influencing structural mode. These clearly illustrate advantage provide guidelines for future designs lightweight.