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Ae104a10_problemset_6

# Ae104a10_problemset_6 - Ae/APh 104a Homework Problem Set#6...

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Ae/APh 104a Homework Problem Set #6 DUE: Friday, December 10, 2010, 5pm to Prof. McKeon’s office Complete at least three of the four exercises below. The exercises require the use of the Cann Laboratory (see rules for use distributed at the start of term and available at the course website). 1/4 Using the Cann Laboratory photoelasticity apparatus, determine the max- imum shear stress along a line normal to the boundary of a square Homalite-100 sample, for loads of 25, 50, 100, and 150 pounds. Derive an equation for the maximum shear stress as a function of load per unit thickness and radius along the normal line. How does your equation compare to the analytical solution for a concentrated load on the boundary of an infinitely large plate (reference: Timo- shenko and Goodier, Theory of Elasticity, Article 33)? Quantify the uncertainty of your experimental equation and provide an error analysis in comparison to the analytical solution. 2/4 (i) Create a 10-point calibration curve of wind speed versus motor setting for the open-circuit wind tunnel in the Cann Laboratory, using

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Ae104a10_problemset_6 - Ae/APh 104a Homework Problem Set#6...

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