Wire form springs can be made in a variety of shapes. The clip shown operates by applying

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Wire form springs can be made in a variety of shapes. The clip shown operates by applying a force F. The wire diameter is d, the length of the straight section is l, and Young€™s modulus is E. Consider the effects of bending only, with d (a) Use Castigliano€™s theorem to determine the spring rate k.
(b) Determine the spring rate if the clip is made from 2-mm diameter A227 hard-drawn steel wire with R = 6 mm and l = 25 mm.

F.

(c) Estimate the value of the load F, which will cause the wire toyield.

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Shigleys Mechanical Engineering Design

ISBN: 978-1121345317

9th edition

Authors: Richard G. Budynas, J. Keith Nisbett

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