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We consider a double layered prestrained elastic rod in the limit ofvanishing cross section. For the resulting limit Kirchoff-rod model withintrinsic curvature we prove a supercritical bifurcation result, rigorouslyshowing the emergence of a branch of hemihelical local minimizers from thestraight configuration, at a critical force and under clamping at both ends. Asa consequence we obtain the existence of nontrivial local minimizers of the$3$-d system.

Hemihelical local minimizers in prestrained elastic bi-strips