A circle of diameter d = 200 mm is etched on a brass plate (see figure). The

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A circle of diameter d = 200 mm is etched on a brass plate (see figure). The plate has dimensions 400 ( 400 ( 20 mm.
Forces are applied to the plate, producing uniformly distributed normal stresses (x = 42 MPa and (y = 14 MPa.
Calculate the following quantities: (a) the change in length (ac of diameter ac; (b) the change in length ( bd of diameter bd; (c) the change (t in the thickness of the plate; (d) the change (V in the volume of the plate, and (e) the strain energy U stored in the plate. (Assume E = 100 GPa and v = 0.34.)
A circle of diameter d = 200 mm is etched
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Mechanics of Materials

ISBN: 978-0495438076

7th edition

Authors: James M. Gere, Barry J. Goodno

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