1. Students will run the experiment in their lab groups.  Two groups will perform the experiment, while the other groups wait their turn.  Feel free to change the loading situation between groups.

• Experimental Procedures
• Data Sheet

2. Compare the experimental flexure stress per unit load with the theoretical.
    
3. Compare the experimental NA location to that obtained from theory.
    
4. From the experimental NA, find the n = E_ss/E_al that would yield the theoretical NA.  I.e., assume , which provides the following formula, and solve for n.

5. Summarize your results, as per your teachers' instructions, and submit at the start of the next lab class.

• Original Data Sheet
• Sample Results
• Sample Calculations

aluminum + stainless steel
aluminum + steel channel
aluminum + stainless steel + magnesium