A Finite-Element-Based Method to Determine the Spatial Stiffness Properties of a Notch Hinge

[+] Author and Article Information
Shilong Zhang, Ernest D. Fasse

Dept. of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, Arizona

J. Mech. Des 123(1), 141-147 (Nov 01, 1998) (7 pages) doi:10.1115/1.1342157 History: Received November 01, 1998
Copyright © 2001 by ASME
Topics: Hinges , Stiffness
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Nondimensional stiffness plots. Dashed lines plot finite element data. Solid lines plot curves fitted to this data. Parameters κ2t and κ1o decrease as t/D increases. Asterisks plot fitted data and analytical predictions of Braak. Crosses plot fitted data of Smith and Chetwynd. Dotted lines plot analytical predictions of Paros and Weisbord.
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Initial and final, near-equilibrium configurations. The initial configuration is indicated by dotted lines. The final configuration is indicated by solid lines.
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Pair of ideally rigid bodies mutually supported by an elastic notch hinge, shown in (a) undeformed, relaxed configuration and (b) deformed, strained configuration
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An elastic section couples two rigid bodies. Distinguished nodes on the mobile rigid body define frame b.
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Finite element mesh with contours of constant strain ε13




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