1. Lab #1: Poisson’s Ratio Determine Poisson’s Ratio Determine Elastic Modulus ASTM Standard E132

2. Today’s Specimen 2024-T351 Aluminum Alloy Contains ~94% (Al), ~4.5%(Cu), 1.5% (Mg) Used in aircraft fittings, gears and shafts, missile parts, veterinary and orthopedic equipment You can use info for 2024-T3 for comparison

3. Collecting Data

4. Perform the Experiment Please be careful in Load Control The piston can move wildly at high speeds if The specimen is not properly mounted Specially tuned parameters are not loaded Be VERY CAREFUL when you use the SETPOINT tool

5. Computing Stress = F/A 0 Area = Width * Thickness Stress = Load / Area Note $C$4

6. Computing Elastic Modulus Select data points by clicking on any and then Right-click and choose “Add Trendline”

7. Computing Poisson’s Ratio Select Transverse Strain Line, and Right Click, and choose “Format Data Series”

8. Material Properties Table

9. Lab Report Grading Rubric

10. Lab Report Grading Rubric -continued

11. Cover Page & Abstract Left Top Header Right Top Header Group Members Title Equipment Specimen

12. Abstract

13. Original Data Sheet

14. Spreadsheet & Graphs etc. Spreadsheet: One Page unless specified otherwise Row and Column Labels Gridlines Graphs (One per Page) Graph Title Axis Labels, Scales etc. Materials Property Table (separate page)

15. Comments and Conclusions Enumerate; Short Title; One or Two Concise Sentences

16. Lab Report #1: due next week Cover Page + Abstract (10 points) Data Sheet (5 points) Spreadsheet of Raw/Processed Data Relevant Plots (20 points) Materials Properties Table (5 points) Comments and Conclusions (15 points)

17. Lab #1 Report due Next Week Individual Data Processing and Individual Write Up Lab #1 Report is due Next Week by midnight Answer Multiple Choice Questions ONLINE Next Week by midnight Answer Student Survey ONLINE Next Week by midnight Submit the Lab Report #1 in the drawer labeled “MECE204 - Strength Lab” under Mech. Engg. Mail Folders