E45ClassQuiz_24 2006

E45ClassQuiz_24 2006 - axis of the cylindrical crystal of...

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E45: Quiz 11/22/06 NAME:_______________________________________________________________ 1. True or False. The theoretical strength of a metal crystal is approximately 1000 times greater than the crystal’s measured strength. 2. Stress and strain are used to describe the force applied to a material and the deformation of the material, respectively. A tensile force, F, is applied parallel to the
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Unformatted text preview: axis of the cylindrical crystal of cross-sectional area, A, and length l O . (a) Specify the applied stress in terms of F and A. σ = F/A (b) The final length of the cylinder is l f . Specify the strain that occurs (in the direction of the axis of the cylinder) in terms of the initial and final lengths of the cylinder. ε = (l f – l o )/l o F F...
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