Influence of actuation sequence on the snap-through process of composite multi-stable structures

Abstract

In this paper, the impact of the actuation sequence on the snap-through process of a composite multi-stable structure composed of regular triangular modules was investigated. Using ABAQUS finite element simulation software, a finite element (FE) model of laminated plates was established, actuation points was selected on its surface, and bending moment loads were applied in different actuation sequences to induce the snap-behaviors of the structure. Based on the minimum load value for driving structure deforms, the actuation sequence laws of multi-stable structures were obtained. The most efficient and feasible actuation path for transitioning between different steady states was also achieved. It’s proved that the actuation paths are reasonable and feasible by the loading experiment. The research results of this paper can provide references for the design of multi-stable structures and the application modes of driving forces.