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Note to Cornell students in MAE 3250, Fall20142015: You only need to complete Exercise 2. |
Exercise 1
A steel bar with E=200GPa and a Poisson's ratio of 0.3 is loaded as shown with a distributed load totaling 50,000 N applied to the right end. The bar is 10 mm thick, and other dimensions are give in millimeters.
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2. Make a plot of the deformed shape. Include the undeformed shape in the same plot (see tip below on how to turn this on). Using this plot, discuss whether you have applied the displacement boundary conditions correctly.
3. Compare Compare the displacement at the right edge (relative to the left) with with a back-of-the-envelope estimate.
4. Make a plot of the Sigma_xx variation in the bar. Deduce the stress concentration factor for the hole on the right from this plot. Compare this to the theoretical value for a small hole in an infinite plate.
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