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Bilayer plates are slender structures made of two thin layers of differentmaterials. They react to environmental stimuli and undergo large bendingdeformations with relatively small actuation. The reduced model is aconstrained minimization problem for the second fundamental form, with a givenspontaneous curvature that encodes material properties, subject to an isometryconstraint. We design a local discontinuous Galerkin (LDG) method which imposesa relaxed discrete isometry constraint and controls deformation gradients atbarycenters of elements. We prove $\Gamma$-convergence of LDG, design a fullypractical gradient flow, which gives rise to a linear scheme at every step, andshow energy stability and control of the isometry defect. We extend the$\Gamma$-convergence analysis to piecewise quadratic creases. We alsoillustrate the performance of the LDG method with several insightfulsimulations of large deformations, one including a curved crease.

$\Gamma$-convergent LDG method for large bending deformations of bilayer plates