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Unformatted text preview: The change in crosssectional dimensions of the wire due to the axial load will be ignored. The wire is assumed to be elastic, and is so thin that all stress components other than the axial may be neglected. Then the axial stress is given by Hookes law dU dX 0 = Ee = E, in which E is a constant called the Youngs modulus of elasticity. Now consider an element of the wire of a small length dx (see Fig. 1.6:2). The...
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This note was uploaded on 01/04/2012 for the course ENG 501 taught by Professor Thomson during the Fall '05 term at MIT.
 Fall '05
 Thomson
 Dynamics

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