Abstract
We investigate the bistable behaviour of folded thin strips bent along their central crease. Making use of a simple Gauss mapping, we describe the kinematics of a hinge and facet model, which forms a discrete version of the bistable creased strip. The Gauss mapping technique is then generalised for an arbitrary number of hinge lines, which become the generators of a developable surface as the number becomes large. Predictions made for both the discrete model and the creased strip match experimental results well. This study will contribute to the understanding of shell damage mechanisms; bistable creased strips may also be used in novel multistable systems.
•Gauss mapping approach is used to describe the kinematics of a hinge and facet model of a bistable creased strip.•The approach is generalised for an arbitrary number of hinge lines approaching the generators of a developable surface.•Bistability is maintained when a hole is introduced removing the stress singularity.•Predictions are compared to experiment showing good agreement.