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A reduced model for large deformations of prestrained plates consists ofminimizing a second order bending energy subject to a nonconvex metricconstraint. The former involves the second fundamental form of the middle plateand the later is a restriction on its first fundamental form. We discuss aformal derivation of this reduced model along with an equivalent formulationthat makes it amenable computationally. We propose a local discontinuousGalerkin (LDG) finite element approach that hinges on the notion ofreconstructed Hessian. We design discrete gradient flows to minimize theensuing nonconvex problem and to find a suitable initial deformation. Wepresent several insightful numerical experiments, some of practical interest,and assess various computational aspects of the approximation process.

LDG approximation of large deformations of prestrained plates