Fig. 8From: Mathematical modeling of auxetic systems: bridging the gap between analytical models and observationPlots of the Poisson’s ratios for honeycombs having h = 2, l = 1 for an initial configuration having an angle between the ligaments of θo = 30o plotted against strain (left) and against the angle θ (right). The shaded region (grey) highlights a non-accessible range of angles. Note that in the case of axial straining in the Ox2 direction, a second set of plots is presented which highlights a smaller range of Poisson’s ratiosBack to article page