Fig. 6: Shells with tunable energy landscape.
From: Universally bistable shells with nonzero Gaussian curvature for two-way transition waves
a Our tunable shell comprises a double shell and two single shell caps. b Geometry of the tunable shell. c Experimental pressure-volume relationship for the tunable shell during its quasi-static inflation (blue) and deflation (red) for 3 different levels of pre-inflation for an internal cavity.
