2000•Journal of Mechanical DesignRequires access

Corner-Filleted Flexure Hinges

Nicolae O. Lobontiu, Jeffrey S. N. Paine, Ephrahim Garcia, Michael T. Goldfarb

Abstract

The paper presents an analytical approach to corner-filleted flexure hinges. Closed- form solutions are derived for the in-plane compliance factors. It is demonstrated that the corner-filleted flexure hinge spans a domain delimited by the simple beam and the right circular flexure hinge. A comparison that is made with the right circular flexure hinges indicates that the corner-filleted flexures are more bending-compliant and induce lower stresses but are less precise in rotation. The finite element simulation and experimental results confirmed the model predictions.

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Key concepts: Hinge, Structural engineering, Finite element method, Bending, Rotation (mathematics), Engineering, Compliant mechanism, Beam (structure)