Lab #1: Poisson’s Ratio

Determine Poisson’s Ratio Determine Elastic Modulus

ASTM Standard E132

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

Collecting Data

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

Computing Stress = F/A0

Area = Width * Thickness

Stress = Load / Area

Note $C$4

Computing Elastic Modulus

Select data points by clicking on any and then Right-click and choose “Add Trendline”

Computing Poisson’s RatioSelect Transverse Strain Line, and Right Click, and choose “Format Data Series”

Material Properties Table

Lab Report Grading Rubric

Lab Report Grading Rubric -continued

Cover Page & Abstract

Left Top Header

Right Top Header

Group Members

TitleEquipmentSpecimen

Abstract

Original Data Sheet

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)

Comments and Conclusions

Enumerate; Short Title; One or Two Concise Sentences

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)

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